Seiko 5 Sports Automatic Sports Style
SRPG 31K1 / SBSA 115
Movement
Caliber: 4R36
Movement: Automatic with manual winding
Driving period: Approximately 41 hours
Exterior
Case Material: Stainless steel
Caseback: See through glass
Case Size: Diameter 39.4mm, Thickness 13.2mm
Glass: Curved Hardlex Crystal
Lumibrite: Lumibrite on hands and indexes
Band Material: Nylon
Other Details
Screw case back
Three-fold clasp with secure lock
Day/Date display
Stop second hand function
24 Jewels
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