Seiko Cal. 4517 - 656

This Spring Drive model from 1970 features a 35mm Hardlex-Coated Steel case. Powered by the 4517 caliber with 17j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-cf6357f105aa]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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