Seiko Cal. 6391 - 510

This Hand-Winding model from 1972 features a 46mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-98a389aec707]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1972

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