Seiko Cal. 6690 - 484

The Seiko 6690-484 represents an important milestone in Seiko's 1979 lineup. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-636c7adb3ed8]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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