Seiko Cal. 4577 - 740

This Solar model from 1969 features a 34mm Two-Tone case. With its 21mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-2d9e2e613ea5]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1969

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