Seiko Cal. 3826 - 640

This Spring Drive model from 1972 features a 41mm Stainless Steel case. Powered by the 3826 caliber with 32j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-6184771d28ac]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1972

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