Seiko Cal. 4426 - 790

This Spring Drive model from 1989 features a 39mm PVD Black case. Powered by the 4426 caliber with 27j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-837a16deaee2]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1989

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