Seiko Cal. 3866 - 781

The 3866-781 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-9bfa8761af5c]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

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