Casio Men's Wave Ceptor Watch FTW100D-7V
We don't know when or if this item will be back in stock.
- Wave Ceptor Collection
- Solar Movement
- 100 Meters / 330 Feet / 10 ATM Water Resistant
- 51mm Case Diameter
- Mineral Crystal
Mns Forester Atomic Solar 100m SS Brclt w/Sunrise/set Data 5 Alarms & Stopwatch
- Shipping Weight: 2 pounds
- ASIN: B000MT81RI
- Item model number: FTW-100D-7V
- Date first available at Amazon.com: September 1, 2004
- Average Customer Review:
|Brand, Seller, or Collection Name||Casio|
|Dial window material type||Quartz|
|Case material||Stainless steel|
|Case diameter||5.1 centimeters|
|Case Thickness||13 millimeters|
|Band width||2 inches|
|Calendar||Day and date|
|Item weight||2 Pounds|
Top Customer Reviews
The watch is a little on the light side, guess that's because the case is mostly plastic and the safety clasp is cheap but will last. I love the auto illumination feature which lights up the face when the watch is angled towards you. Gets the atomic time with no problem as long as it is near a window. No complaints, I wear this thing all the time now.
In the future, I will only buy solar watches. This is my second one and the first with the atomic time receiver.
If you are a hiker, you may think, as I thought, that it would be a great feature to get a quick bearing without a compass. There's a straight-forward but non-trivial calculation to get the solar azimuth given the time of day and latitude and longitude. From the description of the watch, you would expect it to do that calculation.
However, it appears that the watch does _not_ do that calculation. It produces a linear result which is much too simple, and is off by nearly 40 degrees at certain times of day. It appears to get the azimuth closest near sunrise and sunset and noon, and is off most of the rest of the day.
I was quite disappointed when I found this out. If you never plan to use the solar bearing, you won't care a whit.
[Fortunately, I decided to test it out before hiking without a compass, and I happened to do it at a time that showed up the error very well.]
Here is an example, for a particular day, of the azimuth according to the watch and the correct azimuth from the US Naval Observatory, so you can see what I mean:
(Sorry, I can't format this properly. The last number on each line tells you the error.)
Time USNO azimuth Casio Forester bearing difference
04:00:00 AM 51.2 58 -6.8
05:00:00 AM 61 73 -12
06:00:00 AM 69.9 88 -18.1
07:00:00 AM 78.3 103 -24.7
08:00:00 AM 87 118 -31
09:00:00 AM 96.8 133 -36.2
10:00:00 AM 109.8 148 -38.2
11:00:00 AM 130.9 163 -32.1
12:00:00 PM 170.7 178 -7.3
01:00:00 PM 217.1 193 24.1
02:00:00 PM 243.8 208 35.8
03:00:00 PM 258.9 223 35.9
04:00:00 PM 269.6 238 31.6
05:00:00 PM 278.5 253 25.5
06:00:00 PM 286.9 268 18.9
07:00:00 PM 295.6 283 12.6
Most Recent Customer Reviews
I love this watch. I have had it for 4 years now and dive and snorkel with it every year. It is showing some wear but still works as great as the day it arrived. Read morePublished on January 13, 2014 by M. Beste
My impressions after two days: if you are an engineer, you will love this watch. It arrived working with the solar battery half charged and the automatic update applied. Read morePublished on June 1, 2009 by Sidney A. Bordelon Jr.
I purchased the watch in May of 2008.
The main reason I purchased a watch with a metal band is that I have had so many of the plastic/resin bands break and the replacements... Read more
With it's rugged good looks and Casio technology and reliability you can't go wrong with this watch. I look for a few key features in a watch and this one has it all. Read morePublished on April 11, 2009 by J. Hannah
I am very happy with this watch. I replaced my G-shock with this one and while it is not quite as nice I like it. It is also quite a bit lighter than the G-shock. Read morePublished on April 8, 2009 by R. Maichel
ease of use, instructions were fine,this watch is excellent!
Other reviews about the band are true,This watch can be worn on wrist or ankle. Read more
Great value for the price for a solar powered watch. The compass feature is a bit useless, but the sunset/sunrise feature is great for backpacking. Read morePublished on September 28, 2008 by J. M. Sakaguchi
I ordered this watch to replace a similar Casio watch that I'd had for five to six years (the watch band on my original broke and I had trouble finding a jeweler who could obtain... Read morePublished on August 31, 2008 by Tor Neilands
As DigiSol wrote in 2007 "Ordered the watch through Amazon via Chelsea Watch. Was shipped fast and was exactly as promised. Read morePublished on August 2, 2008 by RTA Rider