Seiko Cal. 3857 - 666

The 3857-666 is a sought-after Solar piece from Seiko's golden era. Powered by the 3857 caliber with 34j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-8daabcf2d5d5]

Also known as: Rally, Goldfeather

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1982

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