Seiko Cal. 6643 - 391

Released in 1995, the Cal. 6643 with design code 391 was part of Seiko's domestic market collection. Powered by the 6643 caliber with 33j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-8f60b60fa909]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1995

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