Seiko Cal. 4437 - 945

The 4437-945 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-b9ebb8a9670f]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1991

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