Seiko Cal. 6678 - 731

Seiko 6678-731

The 6678-731 is a sought-after Quartz piece from Seiko's golden era. With its 20mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-0f94df836cc0]

Also known as: Helmet

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
8.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Black
Jewels
24j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1977

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