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by wkat4242 1167 days ago
Ehh the F91W is not very accurate at all as the article claims.

It's not temperature compensated. If you leave it lying on a desk at room temperature yes. Wear it outside in all weather it'll be pretty inaccurate.

I prefer the F-105W myself. It's basically the same watch but with a great blue EL backlight.

4 comments

W-800H is my daily-wear cheap watch here

I had a Pebble and then an Apple Watch. I came to the conclusion I prefer my watches to be tools and not devices. Watches that are tools are cool. Aviation watches, dive watches, etc etc. So much cooler than a smartwatch.

The F-91W is a cult classic but lacks a lot of nice features (for example, a backlight that stays on for a couple seconds after you release the button, alarm snooze, and dual time display).

I love my W-800H though. Still has a 10 year battery, nearly as compact size, and similar aesthetics.

I’ve gone through a couple over the years (the biggest flaw is the band), but my current one is incredibly accurate. Using a high speed camera, I measured 1.43 seconds loss over 6 months. Pretty sure I won the Quartz lottery since that’s much more accurate than spec, but either way I’m happy.

To give a counterpoint, I have worn watches every day for the past 20 years and own both a nice Bauhaus watch, a diver and a cheap field watch. I finally decided to buy an Apple Watch last year to mostly use as a running watch and see what the fuss was about. I’m never coming back. This thing cut my phone use like nothing before. Having access to notifications at a glance without taking your phone out is awesome.
I don't like the Apple watch because of the alerts.

I wish it had geofencing and other custom rules so I could say "give me these notifications all the time, and these other ones when I'm away from home, these when I'm in the office", etc.

Otherwise every notification I get during the average workday happens on my Mac, my iPhone, and my Watch at the same time. It's like sensory overload making every little thing seem like an emergency. So in conclusion I really don't enjoy the ding ding ding of my watch all the time. It makes it extremely hard to disconnect when even your watch is harassing you. I tried turning off all notifications, but then it's less functional than a normal watch.

The new DND custom features are almost there. Maybe in a couple years...

I'll admit it was nice when I was biking 40mi routes regularly or running for use with Strava or something, but I can just bring my phone...

Also trying to do any input on the watch is so painful.

Idea is great, execution is still so far away from where it should be.

Yeah I'd love this too on my phone even. That when I'm home my phone stays silent and just sends me notifications to my computer which is always on anyway.
Yes! Everyone reading this that wants a Casio: just get the f-105w

I went from f91w to the illuminator and it’s much nicer for the backlight

>> The movement is also notoriously accurate. So accurate, in fact, that it’s been infamously used in bomb making, to the point where US intelligence agents declared it to be ‘the sign of al-Qaeda (opens in new tab)’ in training material issued to staff at the Guantanamo Bay detention facility in 2011

Or maybe because it is (and it's clones) are available everywhere for $1?

How many seconds of time accuracy have you found that this watch loses over the course of its 7-year-long battery life? I think I can handle it losing 30 seconds of accuracy per year.
I read Casio promises 30 sec/month but (lucky?) customers report losing 2 seconds per month.

I know its a cheap watch but would it be that hard to have a settings for it? I hear people tuned antique pendulum clocks to seconds per year. I suppose it helps that they are inaccurate enough to have tuning?

It's more like 30 per month. It really depends a lot how much you wear it outside because it's not temperature compensated.

I don't really mind a lot because I will just adjust it once in a while. But I wouldn't claim it to be an accurate movement.

Oh, it's adjustable!? In that case, who cares?
Of course you can just set the time again when it's wrong.

It doesn't have an adjustable offset no. But it doesn't work like that because it's temperature dependent anyway. So the offset is not stable.