Seiko Cal. 4418 - 442

The Seiko 4418-442 represents an important milestone in Seiko's 1985 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-11af72c182a0]

Also known as: Sumo, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1985

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