Seiko Cal. 5643 - 636

The Seiko 5643-636 represents an important milestone in Seiko's 1994 lineup. Powered by the 5643 caliber with 34j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-27e288675dbd]

Also known as: Turtle, Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1994

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