Seiko Cal. 6643 - 761

The Seiko 6643-761 represents an important milestone in Seiko's 1980 lineup. Powered by the 6643 caliber with 34j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-b09b70062e7d]

Also known as: Panda, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1980

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