Seiko Cal. 4520 - 311

This Hand-Winding model from 1978 features a 41mm Two-Tone case. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-07a7e69af915]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1978

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