Seiko Cal. 3880 - 577

This Spring Drive model from 1966 features a 34mm Gold-Plated case. Powered by the 3880 caliber with 25j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-7832d607e55a]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1966

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