Seiko Cal. 3885 - 640

This Automatic model from 1990 features a 41mm Stainless Steel case. Powered by the 3885 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-f773b5826c54]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1990

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