Seiko Cal. 6663 - 781

This Hand-Winding model from 1982 features a 44mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-14dcdaeebe7e]

Also known as: Bullhead, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1982

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