Seiko Cal. 4437 - 743

The Seiko 4437-743 represents an important milestone in Seiko's 1997 lineup. Powered by the 4437 caliber with 28j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-88038c135d1b]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1997

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