Seiko Cal. 7040 - 223

Released in 1979, the Cal. 7040 with design code 223 was part of Seiko's domestic market collection. With its 19mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-79c7cd9aab11]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1979

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