Seiko Cal. 6643 - 642

This Hand-Winding model from 1999 features a 42mm Gold-Plated case. Powered by the 6643 caliber with 18j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-138bc69b68b1]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1999

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