Seiko Cal. 4420 - 230

This Solar model from 1972 features a 45mm Titanium case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-beda283bbc53]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1972

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