Seiko Cal. 0777 - 571

Seiko 0777-571

The 0777-571 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0777 caliber with 28j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-9d985a49c4f0]

Also known as: Bullhead, Helmet

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1976

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