Seiko Cal. 7140 - 613

The Seiko 7140-613 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-b59ebf52cdfe]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1977

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