Seiko Cal. 6639 - 461

The Seiko 6639-461 represents an important milestone in Seiko's 1992 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1734ee6dbdce]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1992

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