Seiko Cal. 7138 - 397

Seiko 7138-397

This Quartz model from 1977 features a 37mm Gold-Plated case. Powered by the 7138 caliber with 28j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-579b1642ceaf]

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Champagne
Jewels
28j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1977

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