95th Auction

2017/5/6

Lot 376

Clemens Riefler, München, Typ A3, Movement No. 553, 1540 mm, circa 1940
An important astronomical precision regulator with gravity escapement, electrical winding system, seconds contact device and Riefler pendulum type J No. 82, DRP 100870 - sold on October 17, 1940 to Pforzheim / Germany
Case: elm. Dial: silvered. Movm.: rectangular-shaped brass movement, solid movement pillars, invar steel pendulum, knife edge suspension with adjusting nut.
Riefler’s range of clock types distinguishes between precision pendulum clocks and precision astronomical clocks. The astronomical clocks achieve the highest accuracy because they must comply with the requirements of astronomical research. Simple precision pendulum clocks were not quite as accurate, which resulted in lower production costs and sales prices. Hence, type A3 clocks with gravity escapement could be ordered as astronomical clocks with pendulum type J or Jsch, or as pendulum clocks with the simpler pendulum type K or Ksch. The construction of the movement was of supreme quality in both types.
The A3 movement and the J type pendulum of this clock no. 553 were built many years ago and adhere to the highest standards. Both are still in immaculate condition; the new case was fitted true to scale a few years ago.

Sold

estimated
25.00035.000 €
Price realized
21.000 €