Seiko Cal. 3870 - 900

The 3870-900 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3870 caliber with 30j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-7b3947d25443]

Also known as: Rally, Goldfeather

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1973

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