Seiko Cal. 6257 - 781

Seiko 6257-781

The Seiko 6257-781 represents an important milestone in Seiko's 1999 lineup. Powered by the 6257 caliber with 26j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-520c65f5491d]

Also known as: Sumo, Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1999

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