Seiko Cal. 4437 - 751

Released in 1988, the Cal. 4437 with design code 751 was part of Seiko's domestic market collection. With its 18mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-d97c0de3ad21]

Also known as: Helmet, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1988

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