Seiko Cal. 4577 - 906

The Seiko 4577-906 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-9387bd5015c9]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1985

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