Seiko Cal. 5612 - 653

This Spring Drive model from 1977 features a 41mm Gold-Plated case. Powered by the 5612 caliber with 27j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-619d4e48707e]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1977

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