Seiko Cal. 4446 - 751

The Seiko 4446-751 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-95fd3cf7ce95]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1975

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