Seiko Cal. 3884 - 878

This Spring Drive model from 1979 features a 43mm Hardlex-Coated Steel case. With its 21mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-9207afab2374]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1979

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