Smart watches will get you killed at night. Al-Qaeda used the Casio F-91W - which is cheap, extremely common, weighs nothing, is water resistant, has a button for the screen light, doesn't
Waterproofing The Best Watch Ever Made | Hackaday
The Casio F-91WS-8 is a jelly update of the classic digital -
REVIEW: Casio F-91W – Centre Seconds
Casio F91W-1 Wrist Watch for Men | Compra online en eBay