Seiko Cal. 4437 - 490

The Seiko 4437-490 represents an important milestone in Seiko's 1988 lineup. Powered by the 4437 caliber with 28j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-28ae29f3f634]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1988

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