Seiko Cal. 4423 - 820

This Solar model from 1966 features a 36mm Two-Tone case. With its 22mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-9c54b1d61825]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1966

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