Seiko Cal. 4437 - 780

The 4437-780 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-ef4337ff65ea]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1968

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