Seiko Cal. 3870 - 947

The Seiko 3870-947 represents an important milestone in Seiko's 1980 lineup. Powered by the 3870 caliber with 17j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-cfd06db235a0]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1980

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