Seiko Cal. 4418 - 527

The Seiko 4418-527 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-bf0b3503309b]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1985

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