Seiko Cal. 4431 - 744

The Seiko 4431-744 represents an important milestone in Seiko's 1980 lineup. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-dc1d5f0b2346]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1980

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