This is a new and unworn watch Honouring its aeronautical origins, Bell & Ross has created a 39 mm version of its iconic square case. The S on this model stands for Smaller, Sleeker and Smarter. MOVEMENT BR-CAL. 102. Quartz. FUNCTIONS Hours, minutes, small seconds at 6 o'clock. Date CASE 39 mm in width. Matte black ceramic. DIAL Black. Super-Lumi Nova®-filled numerals, indices and hour and minute hands. CRYSTAL Sapphire with anti-reflective coating. WATER-RESISTANCE 100 meters. STRAP Black rubber. BUCKLE Pin. Black PVD (Physical Vapor Deposition).