Seiko Cal. 6661 - 820

This Kinetic model from 1968 features a 37mm Gold-Plated case. Powered by the 6661 caliber with 23j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-560bd080fe1e]

Also known as: Bullhead, Rally

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

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