Seiko Cal. 0717 - 813

The 0717-813 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0717 caliber with 24j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-633cd3cda97a]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1987

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