Seiko Cal. 6678 - 571

Released in 1972, the Cal. 6678 with design code 571 was part of Seiko's domestic market collection. Powered by the 6678 caliber with 23j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-ad01dc4cd5d7]

Also known as: UFO, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1972

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