Seiko Cal. 7178 - 639

Seiko 7178-639

This Quartz model from 1980 features a 37mm Hardlex-Coated Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ccd56a1cd13f]

Also known as: Navigator, Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
14.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
White
Jewels
25j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1980

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