Seiko Cal. 7140 - 284

Released in 1977, the Cal. 7140 with design code 284 was part of Seiko's domestic market collection. With its 22mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-0ed89bf06678]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1977

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