Seiko Cal. 5631 - 473

This Spring Drive model from 1974 features a 44mm Gold-Plated case. Powered by the 5631 caliber with 29j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-4a216267dfca]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1974

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