Seiko Cal. 6690 - 958

The Seiko 6690-958 represents an important milestone in Seiko's 1975 lineup. With its 20mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-d44e1c20d823]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1975

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