Seiko Cal. 3873 - 810

This Spring Drive model from 1969 features a 41mm Hardlex-Coated Steel case. Powered by the 3873 caliber with 36j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-114b6c73b12a]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1969

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