Seiko Cal. 4479 - 431

This Hand-Winding model from 1967 features a 40mm PVD Black case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5c94ae1aa04b]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1967

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