Seiko Cal. 3878 - 140

This Spring Drive model from 1988 features a 40mm Hardlex-Coated Steel case. Powered by the 3878 caliber with 18j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-9fb0d4c8b7f8]

Also known as: Samurai, Pogue

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1988

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