Seiko Cal. 4581 - 826

This Spring Drive model from 1967 features a 37mm Two-Tone case. Powered by the 4581 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-db01c8700ef9]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1967

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