Seiko Cal. 6663 - 104

Released in 1976, the Cal. 6663 with design code 104 was part of Seiko's domestic market collection. With its 20mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-d2c29ac16df5]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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