Seiko Cal. 6663 - 123

The Seiko 6663-123 represents an important milestone in Seiko's 1970 lineup. Powered by the 6663 caliber with 23j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-8ebcc9fe10cc]

Also known as: Rally, Navigator

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1970

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