Driving system	Solar
Caliber Number	V157
Case	Stainless steel
Band material	Nylon
Glass	Curved Hardlex
Lumi Brite	Lumibrite on hands and indexs
Drive duration	Operating for approx. 10 months (when fully charged)
Accuracy	±15 seconds per month
Water-resistance	20 bar
Magnetic-reluctance	Equipped
Size	H44.2mm × W44.5mm × D12.04mm
The perimeter of bracelet	200.0mm
Weight	69g
Others	Screw case back Overcharge prevention function Rotating bezel (count down function) Date display Screw-down crown Quick-start function