Seiko Cal. 4452 - 831

The Seiko 4452-831 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-a1eec728f705]

Also known as: UFO, Navigator

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1971

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