Seiko Cal. 6644 - 767

The Seiko 6644-767 represents an important milestone in Seiko's 1983 lineup. Powered by the 6644 caliber with 33j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-b8781fd004a6]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1983

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