Seiko Cal. 3866 - 547

Released in 1973, the Cal. 3866 with design code 547 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-9ae9d2ea71ba]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

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