Seiko Cal. 4423 - 527

This Hand-Winding model from 1973 features a 45mm Two-Tone case. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-135a19693ff6]

Also known as: Samurai, Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1973

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