Tecnotempo Automatic Diver's 1000M Limited Edition 200PCS The case measures 42mm in diameter (excluding crown) and 15,4 mm in thickness New, with tag, and box The Tecnotempo watch was made using first choice components : Black 316L stainless steel case Reliable Japan Automatic Seiko nh35 Movement (24 jewels, 41 hours Power Reserve with maximum charge ) Unidirectional bezel Black dial Luminous index and hands in the dark Automatic Helium Release Valve Sapphire Crystal Black rubber strap Screw-down crown Case diameter: 42mm (excluding crown) Case thickness: 15,4mm Band width: 27mm - 20mm Water resistant: 1000 meters (100 ATM) The circumference of the watch is about 23cm