Seiko Cal. 3840 - 240

The Seiko 3840-240 represents an important milestone in Seiko's 1970 lineup. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-3a23374b3a3d]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

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