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, and 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.