Seiko Cal. 4437 - 729

The Seiko 4437-729 represents an important milestone in Seiko's 1991 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-0814c0353e1f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1991

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