Seiko Cal. 6646 - 574

The 6646-574 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6646 caliber with 25j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-b8d839afe4ac]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1971

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