Seiko Cal. 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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