Seiko Cal. 6638 - 834

This Spring Drive model from 1993 features a 39mm Hardlex-Coated Steel case. Powered by the 6638 caliber with 25j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-ef0a9d105d02]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1993

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