Seiko Cal. 6643 - 690

The 6643-690 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6643 caliber with 32j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-d1aa3ee8d1d8]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1995

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