Seiko Cal. 6663 - 159

Released in 1979, the Cal. 6663 with design code 159 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-8c3bcc8adc55]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1979

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