Seiko Cal. 3874 - 431

The Seiko 3874-431 represents an important milestone in Seiko's 1979 lineup. Powered by the 3874 caliber with 35j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-a5679fffe2e4]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

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