Seiko Cal. 4517 - 950

The 4517-950 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4517 caliber with 26j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-57381a50d512]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1982

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