Seiko Cal. 7138 - 677

Seiko 7138-677

This Hand-Winding model from 1980 features a 37mm Stainless Steel case. Powered by the 7138 caliber with 33j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-243f9351bf80]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
13.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
White
Jewels
33j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1980

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seikata-wm-243f9351bf80