Seiko Cal. 4531 - 198

The Seiko 4531-198 represents an important milestone in Seiko's 1977 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-038d74fa0f81]

Also known as: Navigator, Crown

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1977

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