Seiko Cal. 3840 - 862

The Seiko 3840-862 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-27cea236fa63]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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