Seiko Cal. 4445 - 552

This Spring Drive model from 1984 features a 43mm Stainless Steel case. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-07981d150d5e]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1984

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