Seiko Cal. 6391 - 773

This Quartz model from 1981 features a 42mm PVD Black case. It features a Cream dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-2ca4ada65e02]

Also known as: Bullhead, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1981

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