Seiko Cal. 3880 - 490

This Spring Drive model from 1978 features a 43mm Hardlex-Coated Steel case. Powered by the 3880 caliber with 33j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-dac0072b9306]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1978

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