Seiko Cal. 6390 - 970

Released in 1975, the Cal. 6390 with design code 970 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-8341ef3da259]

Also known as: Bullhead, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1975

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