Seiko Cal. 4431 - 649

The Seiko 4431-649 represents an important milestone in Seiko's 1983 lineup. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-cf60059723ce]

Also known as: Pogue

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1983

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