Seiko Cal. 6663 - 420

The 6663-420 is a sought-after Solar piece from Seiko's golden era. Powered by the 6663 caliber with 17j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-a051aabc2916]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1995

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