Seiko Cal. 4437 - 566

The Seiko 4437-566 represents an important milestone in Seiko's 1981 lineup. Powered by the 4437 caliber with 30j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-b16bc9c90fa9]

Also known as: Monster, Pogue

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1981

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