Seiko Cal. 3872 - 863

This Spring Drive model from 1979 features a 44mm Hardlex-Coated Steel case. With its 22mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-ffe7d0d8b6da]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1979

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