This is the Momentum Wayfinder Base 40mm Watch Features: Lightweight solid titanium case including caseback Off-set screw-down crown and 100M water-resistance rating Ultra-legible top-grade Super-LumiNova luminous dial Scratchproof anti-reflective sapphire crystal High-accuracy low-maintenance Swiss quartz movement Available with either date or no-date Movement: Swiss, Quartz, Ronda 513 (No Date), Ronda 515 (Date) Dial Color: White Full Lume Crown: Screw-down crown Water Resistance (m/ft) : 100 / 330 Case Material: Titanium Crystal: Sapphire Only Case Diameter: 40mm Case Height: 11mm Lug Width: 22mm Lug-to-Lug: 48mm The Wayfinder Base is the simplified version of our classic Wayfinder GMT. Perfect for those who want a classic military-inspired design in a modern size with great specs. The Swiss quartz movement, titanium case, sapphire crystal, full-lume dial, and screw-down crown make this a killer package. Available with either date or no-date..