Seiko Cal. 3897 - 151

This Automatic model from 1975 features a 38mm Stainless Steel case. Powered by the 3897 caliber with 33j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-5b3af4712b8d]

Also known as: Bullhead, Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

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