Seiko Cal. 5221 - 945

This Spring Drive model from 1966 features a 36mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-c19c4aa1314e]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1966

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