Seiko Cal. 6638 - 703

The Seiko 6638-703 represents an important milestone in Seiko's 1990 lineup. Powered by the 6638 caliber with 28j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-27e991ebb815]

Also known as: Shogun, Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1990

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