Tauchmeister Automatic, 1000m Dive Watch with Helium Release Valve and Sapphire Crystal #T0079M
TAUCHMEISTER 1937 T0054 Automatic 2.ww German U-boot Watch for sale online | eBay
Herology on X: "Tauchmeister T0263 100 ATM Diver at 44 mm w/c with helium release bought ten years ago - tough as a German tank and have accidentally hit it on corals