Seiko Cal. 5631 - 774

This Hand-Winding model from 1985 features a 39mm Gold-Plated case. It features a White dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-23e2a2503f23]

Also known as: Rally, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1985

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