1074

1990s

A Chrono-Art "Aurora Classic" table clock

Marked to sticker underside: Model: Aurora Classic / Serial # 537 / 120 VAC 60Hz / Chrono-Art Inc.
Designed 1970 by Jordan Kirsch and Jim Hamilton of Kirsch/Hamilton
The nickel-chrome plated brass reproduction from Chrono-Art using rotating polarized lenses to create a color-changing effect of the dial, with hour and minute hands and seconds dot, electrified
8" H x 5.125" W x 8.25" D

  • Notes: Originally conceived and patented in 1970 by ex-NASA physicist Jordan Kirsch in partnership with architect Jim Hamilton, the clock was first manufactured by Rathcon and marketed as the "Spectrum" clock for a run of 5,000 pieces. Unhappy with the quality of construction, Kirsch and Hamilton formed their own company and began producing the clock under the name "Aurora," followed by variations "Spectra" and "Prisma." In the 1980s, Hampton-Haddon bought the rights to the "Aurora," producing them in Japan with plastic motors until 1991. Around 1993, horologist Barry Gamble (Chrono-Art) began to produce his own polarized clocks, providing repair services for original Aurora clocks, and eventually manufacturing new models based on the original Kirsch/Hamilton design.

    The original Auroras were housed in a polished aluminum case. However, for a brief time, the earliest Chrono-Art models were offered in 24k gold plated brass and nickel-chrome plated brass variations. This lot is an example of the nickel-chrome plated version. Because the plating materials were more cost-prohibitive, Chrono-Art quickly returned to the original polished aluminum case that they continue to manufacture today.

    The color-changing effects of the dial are achieved by layering a pair of polarizing sheets separated by a set of birefringent filters, one of which continuously rotates. The hour hand, minute hand, and second dot are made of the same birefringent material, ensuring that they glow at different colors than the dial background at all times.
  • Condition: Overall good condition with very minor shelf wear. Wiring should be checked by a qualified electrician prior to use. Moran's does not guarantee the working condition of electronic equipment.

    Condition reports are offered as a courtesy and are typically published in Moran's catalogue or can be made available upon request. The absence of a condition report does not imply that an item is free from defects or restoration, nor does a reference to particular defects imply the absence of others. Buyers are responsible for determining to their own satisfaction the true nature and condition of any lot prior to bidding. Though buyers are not legally required to inspect lots prior to purchase, failure to do so may constitute a waiver of complaint that an item was not delivered in a condition equal to the existent condition at the auction.

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June 25, 2024 10:00 AM PDT
Monrovia, CA, US

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