Seiko Cal. 5631 - 378

Seiko 5631-378

This Automatic model from 1976 features a 39mm Two-Tone case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c2b862fbb7c9]

Also known as: Goldfeather

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
39mm
Case Thickness
12.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1976

Related Models

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