Seiko Cal. 7140 - 644

Released in 1971, the Cal. 7140 with design code 644 was part of Seiko's domestic market collection. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-34beee1dcc4a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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