Seiko Cal. 6639 - 902

The Seiko 6639-902 represents an important milestone in Seiko's 1987 lineup. Powered by the 6639 caliber with 33j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-8e3bb3fbcc02]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1987

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