Seiko Cal. 4420 - 923

The Seiko 4420-923 represents an important milestone in Seiko's 1983 lineup. With its 21mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-ce877587cbb4]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1983

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