Seiko Cal. 3890 - 666

The 3890-666 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3890 caliber with 35j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-e395fcb9b6e8]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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