Seiko Cal. 3865 - 142

The 3865-142 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3865 caliber with 22j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-d23d65d82574]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1978

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