Sattler's clocks - very good modern day precision clocks that really last. Top quality.
Very much like in Heinrich Sattler's day.
Perhaps we should also remember how the early day precision clocks were made(1910)
Karl Satori made a 3 month precision regulator and its still running in my house.
The Riefler pendulum(No:475 in this clock) was soon superseded by the Satori quartz
pendulum (patented by Satori himself). However only 12 to 15 were made.
Masters like Anton Hawelk, Morawitz and Mendl made precision regulators using the
Satori quartz pendulum and achieved even high degrees of accuracy.














