Seiko Cal. 3866 - 129

The 3866-129 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3866 caliber with 23j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-75f73dd3072e]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1981

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