Movement : Japanese Seiko NH35A Automatic movement, 24 jewel hacking Seconds

Case diameter: 40.5mm

Case thickness: 13.2mm

Band width: 20mm

Wearable length: 200mm

Waterproof: 20ATM

Weigth: 156g

Bezel material: Stainless steel+Ceramic

Case /Back cover/Strap: Solid stainless steel strap

Clasp: Folding clasp with safety(Fine-Adjustment Clasp)

Lens: Sapphire Crystal With AR Coating