Seiko Cal. 6643 - 100

This Kinetic model from 1965 features a 37mm Gold-Plated case. Powered by the 6643 caliber with 19j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-3b9a6e29cf8f]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1965

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