Seiko Cal. 4549 - 360

This Spring Drive model from 1989 features a 37mm Hardlex-Coated Steel case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ad5be275328a]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1989

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