Seiko Cal. 6638 - 233

This Automatic model from 1991 features a 34mm PVD Black case. Powered by the 6638 caliber with 31j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-28e366026fab]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1991

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