Seiko Cal. 6140 - 771

The Seiko 6140-771 represents an important milestone in Seiko's 1999 lineup. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-7f0274be0e45]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1999

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