Seiko Cal. 3862 - 756

This Spring Drive model from 1976 features a 43mm PVD Black case. Powered by the 3862 caliber with 31j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-f1e046a7e039]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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