Seiko Cal. 6658 - 613

Released in 1978, the Cal. 6658 with design code 613 was part of Seiko's domestic market collection. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-ca208eb7679a]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1978

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