Tecnotempo Automatic Professional Diver 500M/50ATM WR - Black dial - The case measures 42mm in diameter (excluding crown) and 16mm in thickness and about 180gr. of weight New, with tag, box The Tecnotempo watch was made using first choice components : Stainless steel 316L case Reliable Japan Automatic Seiko nh35 Movement (24 jewels, 41 hours Power Reserve with maximum charge ) Unidirectional black polished ceramic bezel Date with lens (to avoid possible damage to the watch mechanism, don't change the date manually with the crown if the watch time is between 8:00 pm and 3:00 am, this is a rule valid for all watches with date ) Black dial with waves 500 meters Water Resistant Automatic Helium Escape Valve on the case side Sapphire Crystal Stainless steel band Screw-down crown Case diameter: 42mm (excluding crown) Case thickness: 16mm Band width: 22mm-20mm Water resistant: 500 meters (50 ATM) The circumference of the watch is about 22cm Weight: about 180gr.