Seiko Cal. 4577 - 188

This Quartz model from 1971 features a 36mm Two-Tone case. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-ce1f2286c990]

Also known as: Sumo, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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