Seiko Cal. 5255 - 771

Seiko 5255-771

The 5255-771 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5255 caliber with 18j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-937ae5350a64]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
39mm
Case Thickness
12.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1973

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seikata-wm-937ae5350a64