Seiko Cal. 6638 - 890

This Hand-Winding model from 1993 features a 41mm Gold-Plated case. Powered by the 6638 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-7d1ae06e313f]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1993

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