Seiko Cal. 5220 - 103

The Seiko 5220-103 represents an important milestone in Seiko's 1979 lineup. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-2b8f44d24dde]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

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