Seiko Cal. 4420 - 659

Released in 1974, the Cal. 4420 with design code 659 was part of Seiko's domestic market collection. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-562bf34055ea]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1974

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