Seiko Cal. 3870 - 864

Released in 1969, the Cal. 3870 with design code 864 was part of Seiko's domestic market collection. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-ba105ccf7b56]

Also known as: Rally, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1969

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