Seiko Cal. 6647 - 900

The Seiko 6647-900 represents an important milestone in Seiko's 1993 lineup. Powered by the 6647 caliber with 27j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-87d79c644e50]

Also known as: UFO, Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1993

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