Seiko Cal. 6650 - 102

This Spring Drive model from 1965 features a 34mm Gold-Plated case. Powered by the 6650 caliber with 22j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-ca097f9eb63f]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1965

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