Seiko Prospex Automatic Diver Baby Tuna SRP639K1

Seiko Prospex Automatic Diver Baby Tuna
SRP 639K1

Movement
Caliber 4R36
Movement: Mechanical automatic winding (with manual winding)
Accuracy: Day difference +45 seconds--35 seconds
Driving period: approximately 41 hours

Exterior
Case Material: Stainless steel
Case Size: Diameter 48mm, Thickness 13.8mm
Crystal: Hardlex
LumiBrite: Lumibrite on hands and indexs
Band Material: Silicone

Other Details
Water Resistance 200m
Screw-down crown
Unidirectional rotating bezel
Day/Date display
Stop seconds hand function
24 Jewels

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