Seiko Cal. 4550 - 958

This Spring Drive model from 1982 features a 36mm Titanium case. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-d340d4591457]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1982

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