Seiko Cal. 5678 - 717

Seiko 5678-717

The Seiko 5678-717 represents an important milestone in Seiko's 1978 lineup. Powered by the 5678 caliber with 20j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-41c08a527684]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
9.9mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Burgundy
Jewels
20j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1978

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seikata-wm-41c08a527684