Seiko Cal. 6660 - 204

The Seiko 6660-204 represents an important milestone in Seiko's 1971 lineup. Powered by the 6660 caliber with 24j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-d01d578e62db]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

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