Seiko Cal. 4437 - 366

The Seiko 4437-366 represents an important milestone in Seiko's 1966 lineup. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-14987cf994af]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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