Driving system	Automatic with manual winding mechanism
Caliber Number	4R39
Case	Stainless steel case Case back: stainless steel and glass
Glass	Dual-curved sapphire crystal
Drive duration	Power reserve: 41 hours
Accuracy	-35 to 45 seconds per day (when static)
Water resistance	Water resistance for everyday life
Magnetic reluctance	Magnetic resistance
Size	H48.4mm x W41.8mm x D12.5mm
The perimeter of bracelet	205mm
Weight	132g
Driving system	See-through case back Screw case back Jewels: 24 jewels 24-hour hand Stop second hand function