Seiko Cal. 5631 - 238

Seiko 5631-238

The 5631-238 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-2461ef8d3de5]

Also known as: Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
11.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Green
Jewels
32j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1979

Related Models

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