Seiko Cal. 4420 - 680

The Seiko 4420-680 represents an important milestone in Seiko's 1988 lineup. With its 19mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-667f7500e5e7]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1988

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