Tecnotempo Professional Diver 2000M "Seamount" Limited Edition (100 pices) Full Set Japanese automatic Seiko nh35 movement 24 jewels 41 hours power reserve with maximum charge Case diameter: 45 mm (excluding crown) Case thickness: 20 mm Strap width: 22 mm-20 mm Unidirectional polished black-light blue ceramic bezel, with 120 clicks and luminous bezel index Beautiful Black-Light Blue Dial Luminous index and hands in the dark 2000 meters / 6500 FT water resistant Automatic helium release valve Antimagnetic Thick (4.5 mm) sapphire crystal Date with lens Comfortable rubber strap Screw-down crown with double crown seal and case back Water resistance: 200 ATM / 2000 meters / 6500 feet The circumference of the watch is approximately 23 cm Weight: approximately 200gr.