Seiko Cal. 4560 - 531

This Hand-Winding model from 1974 features a 40mm PVD Black case. With its 20mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-7d2c5c550e79]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1974

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