Seiko Cal. 4437 - 126

The Seiko 4437-126 represents an important milestone in Seiko's 1981 lineup. Powered by the 4437 caliber with 31j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-e79c4ba136af]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1981

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