Movement type: Automatic
Movement : SEIKO NH34A GMT
Parameter Size: Diameter 39MM * Thickness 13MM
Mirror: Artificially Synthesized Sapphire Mirror
Case Ear Position: 20mm (at the connection between the case and strap)
Watch Strap Length: 200MM
Watch Strap Material: Silicone Strap
Case Material: 316 Stainless Steel
Bottom CoverInstallation: Screw in Type
Bottom Cover Material: Transparent Glass/Stainless Steel
Dial Colour: White
Surface Size: Diameter 28.5mm
Waterproof Level: 50 Meters Waterproof [can wash hands, swim, and meet all daily waterproof needs]

Note: The circle is fixed and cannot be rotated.