Wandering Hour Mechanical watches

Movement:8215-215R4
Number of Jewels：21
Frequency：21600/h
Power Reservation：42h
Waterproof depth: 5 ATM
Functional Characteristics:Luminous function，Dome mirror，Wandering hours
Mirror material:Sapphire Crystal
Strap material: Rubber
Buckle style:Pin buckle
Strap width: 20mm
Strap length: 210mm
Case material: 316L stainless steel
Case thickness: 17.5mm
Case diameter: 41mm
Weight:130G