Seiko Cal. 4420 - 686

The Seiko 4420-686 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c9068a4deaf9]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1966

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