Seiko Cal. 6630 - 550

Released in 1989, the Cal. 6630 with design code 550 was part of Seiko's domestic market collection. Powered by the 6630 caliber with 21j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-ca9cd3a2a953]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1989

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