Seiko Cal. 6663 - 245

The Seiko 6663-245 represents an important milestone in Seiko's 1974 lineup. Powered by the 6663 caliber with 23j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-de2f7818a7f4]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1974

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