Seiko Cal. 6642 - 997

The Seiko 6642-997 represents an important milestone in Seiko's 1990 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-e9665ac4a2b0]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1990

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