Seiko Cal. 4577 - 911

The Seiko 4577-911 represents an important milestone in Seiko's 1980 lineup. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-b063018a5c18]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1980

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