Seiko Cal. 7140 - 998

The Seiko 7140-998 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-3abbc7e23e3b]

Also known as: Sumo, Shogun

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1966

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