Seiko Cal. 6668 - 251

The 6668-251 is a sought-after Solar piece from Seiko's golden era. Powered by the 6668 caliber with 20j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-d951eb228d1a]

Also known as: Rally, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1971

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