Seiko Cal. 4431 - 755

This Hand-Winding model from 1979 features a 38mm Titanium case. With its 22mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-7014781d684a]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1979

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