Seiko Cal. 6680 - 878

Released in 1967, the Cal. 6680 with design code 878 was part of Seiko's domestic market collection. With its 20mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-6174ae9fb725]

Also known as: Silverwave, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1967

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