44 mm stainless steel AISI 316L case with IPB treatment, innovative locking system (Locking ring system) back, crown on left side, domed sapphire crystal, black painted metal dial, Ronda 712.3 quartz movement hours, minutes, screw-down crown, ultra-resistant vulcanised rubber strap, ipb steel tongue buckle. Water resistant to 50 meters (5 ATM).