The Expedition Watch Band Compass is designed to fit on 20-22mm NATO straps. Depth rated to 100M/300' for submersion … | Watch bands, Compass watch, Watches for men
Military Multi Terrain Pattern Survival Watch Strap Compass
These button compasses are about the only ones I've found that are reasonably reliable. I finally came up with a cheap, easy, durable way to add one to a watch band. I'll