Seiko Cal. 6251 - 556

The 6251-556 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6251 caliber with 18j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-c870db27dc14]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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