Seiko Cal. 5220 - 343

The Seiko 5220-343 represents an important milestone in Seiko's 1973 lineup. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-aac49b7eba51]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1973

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