Driving system	Solar
Caliber Number	H851
Case	Stainless steel
Band material	Silicon
Glass	Hardlex
Lumi Brite	Lumibrite on hands, indexs and bezel
Accuracy	±15 seconds per month
Water-resistance	Water resistance for diving
Magnetic-reluctance	Equipped
Size	H50.5mm × W47.8mm × D14.4mm
The perimeter of bracelet	210.0mm
Weight	114g
Others	Alarm function (daily alarm) Power save function Screw case back Unidirectional rotating bezel Screw-down crown Full-auto calendar correct to the December 31, 2100 LED (the built-in illuminating light) function