Seiko Cal. 3870 - 839

The Seiko 3870-839 represents an important milestone in Seiko's 1967 lineup. Powered by the 3870 caliber with 29j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-c867ce227825]

Also known as: UFO, Goldfeather

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1967

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