Seiko Cal. 5631 - 256

The 5631-256 is a sought-after Solar piece from Seiko's golden era. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-77bc3176427a]

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1965

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