Seiko Cal. 3874 - 145

This Hand-Winding model from 1984 features a 41mm Hardlex-Coated Steel case. Powered by the 3874 caliber with 31j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-05ef8d9a41d7]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1984

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