Seiko Cal. 6688 - 778

Seiko 6688-778

The Seiko 6688-778 represents an important milestone in Seiko's 1991 lineup. Powered by the 6688 caliber with 29j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-8c7291352792]

Also known as: Sumo, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
13.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Champagne
Jewels
29j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1991

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seikata-wm-8c7291352792