This is the Momentum Wayfinder GMT Quartz 40mm Watch Features: GMT function with a 4th 24-hour hand to allow you to tell two-time zones at once Lightweight solid black-ion plated titanium case Off-set screw-down crown and 100M water-resistance rating Ultra-legible top-grade Super-LumiNova luminous dial Comes standard with virtually scratch proof anti-reflective sapphire crystal High-accuracy low-maintenance Swiss quartz movement Movement: Swiss, Quartz, Ronda 515.24H Crown: Screw-down crown Water Resistance (m/ft) : 100 / 330 DIMENSIONS: Case Diameter: 40mm Case Height: 11mm Lug Width: 22mm Lug-to-Lug: 48mm Featuring a Swiss GMT quartz movement, the Wayfinder GMT is our premium military-inspired outdoor watch made to accompany you anywhere. It boasts an anti-reflective sapphire crystal, 100-meter water resistance, and a screw-down crown in a nicely proportioned 40mm titanium case. And thanks to Super-LumiNova hands and dial markings, this watch is ultra-legible.