Model: Mondaine Watch - Official Swiss Railway Watch: Mondaine Men's Chronograph Watch A690.30338.11SBB Case material: Solid stainless steel case with black ionic Case dimensions: 42mm in diameter, 12mm in thickness Movement: Swiss quartz movement Crystal type: Scratch resistant sapphire crystal Crown Push and pull crown Water resistant: 30 meters Dial color: White dial with black index markers Band type: Genuine black leather strap Lug width: 22mm Additional features: Big date display; Chronograph functions Warranty: All Mondaines watches are backed by a 2 year manufacturer's warranty