The Avocet watch was the first reasonably accurate altimeter. It sure is bulky and ugly though. A bad feature is it is rated to about 10 feet of water resistance. Probably ok in the rain, but that is about it. It has an anti-hysteresis feature which makes it very accurate when accumulating altitude gained while hiking. The battery life isn't great, and Avocet wants to change batteries and recalibrate the watch. When I bought the watch, it cost $5 to send the watch to Avocet. Then they raised it to $10, and last time I checked, it was $20, which is unreasonable. There is a circuit layout bug in the first generation watch which makes the displayed temperature read high when it is very cold. I put mine in a calibrated -40F, and it read -16F.
What is worse, is the band design. There is a elastic 'ski' band, which is useless for me. There is a nylon webbing one, and a rubber strap one. I used to have the nylon webbing one, but when I was in Fairbanks Alaska, the plastic clasp that held the nylon webbing shattered in the cold temperatures of around -25F. The good news is that I called Avocet on their toll free number, and there was a new rubber strap waiting for me when I got home. I sent them the shattered plastic clasp...
My watch is now for sale. If anyone wants it, it is in good condition, it just needs a battery.
I bought this watch about 23 years ago. It has 24 time zones. It measures temperature (either in 'on wrist' mode or in 'off wrist mode'). It stores the temperature every hour for the last 24 hours. It is reasonably accurate, and very handy to get an idea how cold it got when in the outdoors. My backlight bulb failed after 5 or 6 years. The waterproofing also went. Now if it gets wet, the battery needs to be replaced and the watch guts need to be dried out. I think the newer model doesn't have a light-bulb but an electroluminescent backlight. Module number is 815
I have owned at least 2 Casio watches that measure altitude. Since I teach navigation, altitude is a handy feature. The first one also had a water depth gauge which I found a novel toy. As for the altimeter, last time I checked it was very temperature sensitive. According to the Casio manuals the displayed altitude varies 100 meters with a 10 degree C change. This makes it unsuitable for any kind of serious navigation.
I think the watch was model PRT700NT-7AV. The Casio watch has many features. It measures altitude, barometric pressure, and temperature. Here are some specs:
The Barometer (range 13.55inHg to 32.45 inHg, display unit 0.05 inHg) takes barometric pressure readings every 2 hours and stores up to 10 sets of readings with the altitude and temperature in memory. The Thermometer (range 14F to 140F, display unit 0.2) checks the temperature once every 5 minutes. The Altimeter (range -2300 ft to 19,680 ft., 20 ft. increments) takes altitude readings every 2 minutes, displays them and stores them in memory. With the Auto Light Switch on, simply tilting your wrist 40 degrees toward you from the horizontal position illuminates the EL backlight for about 2 seconds. Analog and digital timekeeping. 12/24 hour formats. 1/100 second stopwatch. Hourly time signal. Daily alarm. Countdown timer. 100M water resistant.
Sounds pretty groovy, right? Well, there is some titanium. The back of the watch case is stainless steel. Much of the front of the watch is black plastic. Worse, the interface between the watch and the band is black plastic. There is the conventional pin between the watch and the plastic thingy, then another pin connecting the plastic thingy to the titanium band. The clasp of the band is conventional, with a secondary clasp to hold the clasp shut.
Now for the problems. There are two models, one of which has a backlight for the entire watch face, and another with a backlight only for the two small LCD displays. I got the second one, not realizing there were two different models, which is pretty useless. I am used to the Timex backlight, and found the Casio one very dim.
What is worse, is that under normal use, I had the primary clasp of the band open. The band didn't come off, but it might have. Also under normal use, the pin between the watch and the cheapo plastic thingy connecting to the band opened. This made the watch fall off. This is completely unacceptable, as a watch that falls off is pretty useless for outdoor use.
Also unclear until I bought the watch is that the 10 readings the watch stores must be taken manually, not automatically. The readings every 5 minutes for temperature are not stored anywhere. Check the owners manual before buying a Casio watch.
This watch is pretty rare. Mine is not a normal Gulfman, but rather a limited edition Gulfman called the I.C.E.R.C. All-As-One Dolphin & Whale. It is from the 8th International Dolphin & Whale Conference, 1999. It model name is DW-9700K, which is the same as the Gulfman. I bought it on the web from www.2000watches.com, a company in Malaysia. If you are looking for one, be sure it is a DW-9700, as there is another Dolphin & Whale watch. Casio also made several other limited edition Gulfmans, including one for the 1999 USLA National Lifeguard Championships (DW-9700UL-9T). It is really bright yellow and black. Mine is a much more subdued translucent gray, which I greatly prefer. The Lifeguard watch can likely be found on ebay, just search for Gulfman.
There is very little info on the web about this watch. Casio's web page sucks, but if you enter the 'module number' of 2017, you can get the owners manual. I was a bit leery of this watch, due to the serious problems I have had with other Casio watches, especially the Casio Titanium Pathfinder Watch. All my worries were groundless. I now believe that Casio knows how to make really good watches, even if they don't usually do so.
The Gulfman is a pretty complex watch, with many modes and sub-modes. It is a G-Shock watch, which means it is 200 meter water resistant as well as very shock resistant. It is one of the early solar powered Casio watches. The newer 2002 Casio solar watches are more sophisticated, since the solar panel is behind the display, rather than the Gulfman way, on the face of the watch where the display isn't. I have decided that solar power is pretty important for me, because all other Casio watches end up not being very waterproof after changing the battery. Solar power = not having to change the battery = really waterproof. I called Casio tech support, and they told me they had a really sophisticated way to seal Casio watches, which is how it is done when the watch is new, and that you can send back a watch and they will do it for you for around $10 - $12.
The Gulfman has a mineral crystal face. This is much more scratch resistant than a plastic face. The worst plastic face watch I know of is my Suunto Altimeter Watch , which is the watches worst feature. I think all serious watches need a mineral crystal or synthetic sapphire face. All the metal in the Gulfman is titanium. I have always lusted after a titanium watch, and now I have one. By 'all the metal', I really mean all. The watch case, the watch back, the watch back screws, the strap screws, the band buckle, the band retaining thingy, everything. You can see the details in the two pictures below.
The Gulfman displays the phase of the moon, and the tide. It can also display moon rise and setting times as well as sun rise and setting times. It can do this for 8 different locations, specified by latitude and longitude in one degree increments. The manual lists many locations, though the tide information for most isn't in the manual, though it can be found in other Casio manuals, i.e. module 2532. The Gulfman also has the usual stuff like 5 alarms, date, day of week, stopwatch, and the like.
One bad features are the nightlight has a picture of a whale or dolphin, which makes it hard to read. Another bad feature is the really tiny display of some data. You almost need a magnifying glass to read some of it. The owners manual is also quite unclear on a bunch of details.
Overall, I am pretty happy with the watch. The battery is almost certainly a rechargeable lithium ion, and should last for around 20 years. The watch is next to indestructible. It has all the features I really need. Perhaps one day Casio will sell a updated version of this watch, with a bigger, more readable display.
I ended up selling mine, as the display was too hard to read for my tastes.
About a week after I sold my I.C.E.R.C 1999 watch, I began to regret it. I could find no other watch with all of its features. Displaying all of the features wasn't very intuitive, and it was quite hard to read. I decided to get another DW-9700. The one I bought was a Japanese model DW-9700, module number 2080. It is all black, the backlight is plain (no dolphin picture to make it hard to read), and the band keeper is plastic unlike the I.C.E.R.C watch. I still wish Casio would make a newer version that was easier to read.
I also bought a Helly Hansen DW-9700, which is from the Nippon Challenge America's Cup 2000. The band is off-white. It is in very good condition, and looks new.
I read about the Decision Maker on slashdot.org in someone's list of essential electronic gear. Having a soft spot for digital watches, I was intrigued by it. I bought it from TokyoFlash, sellers of unusual watches.
Even though the picture of the watch I found was white, the actual watch was a turquoise blue. What was not clear from the description or the picture, was the watch was designed for a very small wrist, like a child's. The strap attached at an angle to the watch itself, so on my wrist, the watch stood out a ways from my wrist. Also the strap was very small. I recall it fit on the last one or two holes in the strap.
It did work as advertised, which was very amusing. Sometimes you had to shake it to get it to not shake the display. It beeped. It flashed lights. It is made by Takara Corp who made that weird electronic pet toy that was very popular in Japan. If it wasn't for the band, I would have likely kept it. It also wore out its battery in about 5 months. Fortunately, there is ebay. Someone in Italy saw it, and I shipped it to them.
Since it isn't generally available anymore, I will include a description:
Ever had a hard time deciding which direction to go, or should I, or shouldn't I? Well this watch will do the deciding for you. It is equipped with several functions that can point you in the right direction or make decisions for you. 3 LED lights flash on the side when functions are selected and all kinds of beeps and screen savers are displayed. I have personally played with this watch for almost 2 hours and there are still new displays coming up. Push both buttons at the same time when in time mode and the time display goes all wacky in un-countless ways. The numbers blur, shake across the screen, go up and down like waves. It has a virus scan, ram, CPU, memory screen displays. I think I will stop here and let you find out the rest for yourself. The sound can be turned off too, so you won't irritate everyone around you.
The Decision Maker Watch by OVO "boots" up and pretends to be a full featured PC, scans for viri, RAM, etc.. but it's actually a watch that just helps you make decisions.
Why we like it: Not only will it answer your deepest most important YES/NO questions with a spin of the dial and flashing LEDs, it will also tell you which direction to go if you're lost.
I bought the original Decision Maker watch. It was too small for me, but otherwise very cute. I was looking at TokyoFlash and saw the OVO Ana Digi watch. I asked them if they had a copy of the owners manual they could send me (which they didn't). I asked them if it was for larger wrists than the Decision Maker (which they didn't know). It looked like an interesting watch (and they sent me a discount coupon) so I decided to buy it.
It is much more sedate looking than the Decision Maker. It actually fits my wrist quite well. It would be nice if the band was a bit bigger, but I can secure the strap. The strap is black rubber and integrated into the watch, so it cannot be replaced. The watch doesn't have any flashing LED's, nor does it make a bunch of silly sounds. It doesn't even have shake sensors, or weird screens (anti-virus, memory scan, etc.) like the Decision Maker does.
It does have a decent backlight, which the Decision Maker lacked. It has analog hands as well as a digital display (which can be turned off). It has a timer, 2 alarms, a chronograph, world time and a decision maker function. I am not sure how many cities are listed with world time, but I would guess more than 20. I don't even recognize the name of some of the cities. The decision maker function is much more sedate than the Decision Maker watch, and just gives advice. You can even set the time to 24 hour mode (which I like).
The watch does use two batteries, one for the analog watch and one for the digital watch. Hopefully the batteries will last a reasonably long time. For me, this one is a keeper.
This is a very large watch. The case and bands are available in different styles. Mine is an inexpensive style, all black with a nice black rubber strap. It is comfortable to wear. Like the Vector, it features an altimeter, barometer, compass. In addition, it has a depth gauge that goes to 10 meters. The battery compartment lid is stainless steel, not plastic. The display face is mineral crystal, not plastic, making it much more scratch resistant. Some have complained that the display lacks contrast. No idea why, as it is very high contrast and easy to read. I presume the altimeter is as accurate as the Vector. It has menus to set all of the options of the watch, which makes it easy to navigate all of the options.
This is a great altimeter. It is also reasonably waterproof and has an easy to change battery. Just be sure to use a nickel on the battery compartment lid, or you will cause it serious harm. I have the one with the plastic face with the leveling bubble. The bubble is cute, but the plastic scratches very easily. It sure is a large watch. I recommend the glass faced versions.
Like most outdoors companies, Suunto has excellent customer service. When I broke the band they sent me a new one. When I stripped the battery compartment lid they sent me a new one (use a nickel to open it). They didn't want any money for either problem, which were my fault. I still haven't figured out what to do with the rotating bezel for the compass... This is probably the best altimeter watch available (though I am unfamiliar with the Avocet II).
I bought this watch when I wanted to go white water rafting and all my waterproof watches were too expensive to risk in the river. It stores around 50 names and phone numbers. It also does laps and the usual watch things. It is reasonably inexpensive, had a very good light, has a excellent reflective LCD that is easy to read during a full moon, and has very high contrast during the day. It is also reasonably waterproof. The worst feature is it is only programmable with windows 95 or 98. It doesn't work with windows NT or 2000 (unless you get a silly serial port led toy which costs about as much as the watch.) I contacted Timex, and they claim that their software simply cannot be made to work with windows NT or 2000. They have some newer Datalink watches which do work with NT and 2000, so I think the folks I spoke to were clueless or misinformed.
The new datalink has an USB connection. In addition to being a watch, it acts as a personal organizer. It can hold hundreds of phone numbers, appointments, notes, and the like. If my Ironman-datalink ever fails (unlikely) I will get this one. Both the Ironman datalink model that I have and the Ironman datalink USB have flown in space. The common space watches are the omega X-33, omega speedmaster, and Casio g-shock.
I had wanted this watch for a while, I got it for a good price. It has a USB connector to communicate with the computer. I got the version with the rubber watch band, and it is a bit on the small side, fitting on the next to last hole for my wrist. The bezel around the glass isn't as substantial as the older Ironman datalink, but seems to do a decent job of preventing scratching. The screen is quite readable, perhaps even better than my old data link. Much more readable than any Casio watch that I have seen. The watch band also seems to be very nicely made. The 'keeper' for the band has an oval hole which mates with an oval bump at the end of the band to securely hold the end of the band. The clasp has 5 holes drilled in it for unknown reasons, but it looks nice. One problem is the backlight. It can be disabled, or enabled during certain times (auto mode). If it is enabled during certain times, it will turn on when ever you press a button, that is there is no specific light button. If you enter a dark theater and want to see the time, you will have to switch from auto mode, to on mode (which can be done), but I would prefer a dedicated button. Perhaps this was done to minimize the number of buttons. Both the Ironman datalink model that I have and the Ironman datalink USB have flown in space. The common space watches are the omega X-33, omega speedmaster, and Casio g-shock.
I loaded the world time program which is very nice, as well as a bunch of contacts (names and phone numbers). I also loaded a program called My Watch which has a wide variety of watch displays, and is highly recommended. There is supposed to be some tide displaying program that I am looking for for the data link usb. There are a few things that could be improved however. The glass front could be mineral crystal or some other scratch resistant material. The watch could be solar powered. It could be more programmable. The backlight could have a different user interface. The plastic watch band isn't very durable. I have broken two of them. I have switched to the metal and plastic band instead. Hopefully it will be more durable.
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