Seiko Cal. 0731 - 168

Seiko 0731-168

This Quartz model from 1975 features a 46mm Hardlex-Coated Steel case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-5935db4b1624]

Also known as: Monster, Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
11.1mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Black
Jewels
21j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1975

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seikata-wm-5935db4b1624