Seiko Cal. 6643 - 951

The Seiko 6643-951 represents an important milestone in Seiko's 1986 lineup. Powered by the 6643 caliber with 23j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-26c6d8e7c275]

Also known as: Samurai, World Timer

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1986

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