Seiko Cal. 6643 - 256

The Seiko 6643-256 represents an important milestone in Seiko's 1996 lineup. Powered by the 6643 caliber with 26j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-015854aa4ef2]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1996

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