Seiko Cal. 4450 - 421

Released in 1975, the Cal. 4450 with design code 421 was part of Seiko's domestic market collection. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-79a9fd4290ab]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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