Seiko Cal. 4420 - 413

The Seiko 4420-413 represents an important milestone in Seiko's 1965 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-a762ed9c4980]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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