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
Amazon.com: MARATHON Military Grade Clip-On Wrist Compass | Glow in The Dark Luminous Bezel | SERE Survival Evasion Resistance Escape | Northern Hemisphere Version : Sports & Outdoors
UDIYO Pocket Watch Luminous Quartz Movement Digital Display Accurate Compass Round Dial Pocket Carabiner Clip Sports Hiking Watch for Camping - Walmart.com
Watch Strap Compass | Paid To Raid
WristTurtle Compass
COMPASS CUSTOM – Tense Watches (US)
Miniature Watch Strap/Band Compass – Military Watch Company (MWC)
Glow-in-the-Dark Clip Compass – Marathon Watch
How to use your watch as a compass - ATELIER DE GRIFF
Slip-on Wrist Compass
Expedition Watch Band Compass Kit Ti - Orange | PDW | Prometheus Design Werx
Strap Compass – Windup Watch Shop
A0014 Liquid Wrist Compass – Bertucci Watches
Bertucci DX3 Compass™ Field Watch with Nylon Strap, Black Dial - #11103