Seiko Cal. 6393 - 660

The Seiko 6393-660 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-ed874dcf06e5]

Also known as: Sumo, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1977

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