Seiko Cal. 6663 - 921

The 6663-921 is a sought-after Solar piece from Seiko's golden era. Powered by the 6663 caliber with 34j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-f83e4ebadd08]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1986

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