Seiko Cal. 5646 - 228

This Hand-Winding model from 1982 features a 43mm Two-Tone case. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-e1fe9206e0a8]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1982

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