Rene Mouris Automatic Mechanical Gents Watch - Hidden (Butterfly) Deployant Clasp - See-through Case Back - Mineral Crystal with Sapphire Coating - Semi-skeleton Dial, Band Color Black - 316L Stainless Steel- Water Resistant 10 ATM / 100 m - Reserve up to 42 hours - Case 44mm - Genuine Leather - Small Second Sub-dial - 24 Hour Sub-dial - Dial Color White