Seiko Cal. 3866 - 184

The 3866-184 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3866 caliber with 17j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-ae437c57fe96]

Also known as: Turtle, Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1978

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