Seiko Cal. 4445 - 637

This Spring Drive model from 1980 features a 41mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-f5527e70f6cc]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1980

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