Seiko Cal. 3821 - 275

This Spring Drive model from 1974 features a 43mm Stainless Steel case. Powered by the 3821 caliber with 26j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-a89d7da272de]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1974

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