The Baume & Mercier 10453 Classima watch combines a 42mm round shaped stainless steel case and black leather strap with a traditional buckle. It has a black analogue dial with a date display which is protected beneath scratch resistant sapphire crystal glass. Power is generated by the Swiss made Sellita SW200 automatic movement with 26 rubies and a power reserve of up to 38 hours. This model also has a water resistance of up to 50 metres.