Seiko Cal. 6117 - 939

The 6117-939 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6117 caliber with 20j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-6af42712027e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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