Seiko Cal. 3897 - 372

This Automatic model from 1968 features a 36mm Hardlex-Coated Steel case. Powered by the 3897 caliber with 33j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-a0d5061d54d3]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1968

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