Seiko Cal. 3816 - 727

The 3816-727 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3816 caliber with 30j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-45ab44675464]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1981

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