4 ms·
Actually that F91W does not keep very good time. There pretty excellent if you keep them on a shelf bit if you run around outside in the hot and cold (you know
by wkat4242 2y ago
Actually that F91W does not keep very good time.
There pretty excellent if you keep them on a shelf bit if you run around outside in the hot and cold (you know, like people use a watch) they'll deviate quickly. Because they don't have a temperature controlled (or even compensated) oscillator. A real TXCO (basically putting the crystal inside a temp calibrated oven) is not feasible on a watch battery but compensation sure would be.
- ben_w 2y agoI picked it not because it's good, but to illustrate the cheapest digital is still better than any analog mechanism that money can buy.
- wkat4242 2y agoAh ok,I didn't realize analog watches were that bad.
- minetest2048 2y ago> A real TXCO (basically putting the crystal inside a temp calibrated oven) is not feasible on a watch battery but compensation sure would be. Nitpick: You're thinking about OCXO for crystals inside an oven, TCXOs are temperature compensated crystal oscillators