Seiko Cal. 6678 - 997

Released in 1976, the Cal. 6678 with design code 997 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-13c7ce6fdd43]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

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