Seiko Cal. 0717 - 310

This Hand-Winding model from 1972 features a 42mm PVD Black case. With its 22mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-ab79990d95eb]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1972

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