Vario 1918 Trench is a re-imagined WW1 Trench watch with upgraded specs such as a robust modern enamel dial; anti-reflective sapphire crystal, a marine grade stainless steel case with thicker wired lugs for added security, 100m water resistance, non-radioactive lume and a hacking Japanese automatic movement. This watch tributes the birth of wrist watches for men in the early 20th century. Case diameter: 37mm Case thickness: 10mm Dial: Enamel Crystal: 2mm double domed sapphire with inner AR applied Lug width: 18mm Lug to lug: 45mm Lume: C3 Lume Case Material: 316L stainless steel Caseback: 316L stainless steel with option for empty caseback and laser engraving at additional cost Crown: Screw-down crown Movement: Adjusted Miyota 82s5 automatic gilt movement (Côtes de Genève) with hand-winding and hacking seconds. 21 jewels 21.6kpbh more than 40 hours power reserve Water resistance: 10 ATM Strap: Crazy horse leather with bund pad (75mm/120mm) or single pass (270mm) Warranty: 2 year global warranty