Seiko Cal. 5629 - 437

This Automatic model from 1972 features a 41mm Two-Tone case. Powered by the 5629 caliber with 26j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-41e2797f4596]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1972

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