GPW Military Date Red Minute Hand Luminous Titanium Automatic Sapphire Crystal Watch #1 Most Lightweight Titanium Military Watch available. The watch weighs only 57GR. (2 OZ) without strap. Manufactured by Arctos Praezionsuhren e.K. in Germany (Tradition since 1923) with a 2 year manufacturer warranty. Arctos produced one of the few official German Military watches (NATO supply number 6645-12-194-8642). This model is based on watches made for the Infantryman of the Future and German KRK (Crisis Reaction Forces) Soldier and was designed by members of this unit. Precision Automatic movement (24 Jewels); Functions without a battery; Powers automatically with the movement of your arm. Electromagnetic Pulse (EMP) Resistant. Extra strong sapphire crystal with anti reflection coating (as required by the German Armed Forces; Much harder than mineral crystal and almost impossible to scratch). German Utilitarian Dial Design. Hands and hour markers with luminescent for readability in the dark. 200M (660 feet water resistant). Sandblasted Titanium Case (to avoid light reflections when in hostile territory) with protected screw-in locked crown and caseback. Lightweight for Comfort and Resistance. 42.5MM diameter made from Grade 2 Titanium (made for Industrial Marine and Aviation use).