Clock No. 545

VR-383 - Lenzkirch Precision Regulator with center- sweep second and 6 jewels, of 8 duration, with dial marked “Bore & Berger, Magdeburg”

VR-387 - Month-duration Precision Regulator with maintaining power by Rudolf Lehrl of Kufstein

VR-427 Precision Regulator with mercury-compensating pendulum and jeweled pallets of 1 week duration by Hans Römer

VR-515 Precision Regulator by Fernand Lust, Ecole Prof. elle De Mecanique De Precision D’Horlogerie Et D’Electricite, Bruxelles

VR-355 - Reguladora Electric Master Clock

VR-288 - Precision Regulator with Riefler pendulum and jeweled pallets of 1 month duration

VR-287 - Astronomical Precision Regulator with mercury-compensating pendulum and jeweled pallets of 1 month duration by Math. Meindl, Wein VII Burggasse III

VR-454 Massive Precision regulator with Temperature Compensated Pendulum