Seiko Cal. 4550 - 548

The Seiko 4550-548 represents an important milestone in Seiko's 1990 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f61cbe00afb8]

Also known as: Samurai, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1990

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