Seiko Cal. 4520 - 235

This Spring Drive model from 1991 features a 36mm Gold-Plated case. With its 21mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-13c9fa38148c]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1991

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