Seiko Cal. 4550 - 516

The Seiko 4550-516 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-0253bf4401e7]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1985

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