Seiko Cal. 6251 - 640

Seiko 6251-640

The 6251-640 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6251 caliber with 17j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-6e45f7a17d39]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
46mm
Case Thickness
10.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1975

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