Seiko Cal. 4535 - 491

This Hand-Winding model from 1979 features a 40mm PVD Black case. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-deaa4b556b74]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1979

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