Dimensions: 45 x 32 x 25 cm ( H x B x T )
Price Range (inkl. VAT): 20 – 30.000,00 €
Shipping included. (Details) Posterprint NT6
Table Clock NT 6 „Retrograde seconds” – New Table Clock Model
Another new complication is now available for the existing collection of table clocks. With the models NT 6 “La gracieuse” and NT 6”La brillante” a retrograde seconds indication can be ordered. Within one minute, a gilded hand describes an angle of 90° before jumping back and beginning the next 60 seconds. The hand sits on a small column between the two main columns where the movement is mounted. The black segment with its glossy white printing fits perfect to the main dial of the clock.
Duration 14 days
Main plates of 4 mm hard brass
Highly polished surfaces gilded or rhodium plated
Highly polished and hardened pinions
9 ruby bearings
Dead beat anchor escapement
½ seconds beating 5-rod pendulum
Black chapter ring with glossy white printing
Flame blued steel hands
Indication of retrograde seconds in front of the pendulum bob on a 90°-segment
Base and columns made of black anodized aluminium with polished applications and adjustment screws
Each column consists of 6 different parts
Glass canopy with front door and 5 bevelled glasses
The opportunity to purchase something unusual or even unique, is and has always been a prominent feature of classical craftsmanship. A fine example of this is the clock NL 500 in the rhodium-plated version shown on this page.
Majestic precision with a power reserve of one year
Dimensions: 210 x 45 x 23 cm ( H x B x T )
Price Range (inkl. VAT): 45 – 55.000,00 €
Shipping included. (Details) Posterprint
A new clock of Matthias Naeschke is always a technological unity with fine aesthetic focus. The longcase clock NL126 skilfully blends the majestic swing of the unusually long 1,75 m (1¼ seconds) pendulum with the long running duration of the clockwork of one year. Decades of accumulated experience of the German clockmakers from building long duration clocks and the fundamental horological knowledge about physical feasibility have combined in the realisation of this fine development.
The precision pendulum clock GRAMAT is the only clock currently being produced that operates in a partial vacuum similarly to the clocks in evacuated tanks produced in the last century. After a long development period, PW has succeeded in producing hand-made, extremely delicate and airtight housings. By means of a patented process, the density of the enclosed air is kept remarkably constant, thus protecting the pendulum from atmospheric changes. The sensor is a glass ball with a volume of approx. one liter. The air’s density affects the ball’s buoyancy, which, in turn, controls a small vacuum pump located in the base of the clock. This control mechanism is so sensitive that it is triggered by density changes of less than 0.1 mg per liter, which corresponds to a change in air pressure of 1/10 hPa. The control panel is located in a drawer. When it is time to wind up the clock, the vacuum control unit is turned off and air is permitted to enter through a valve. The air pressure is indicated on a precise diaphragm pressure gauge.
The adjusting screw at the lower end of the pendulum rod is activated by means of a worm gear. It allows for very sensitive adjustment with a precision of 1/100 of a second per day. Another unique feature is the beautiful large wheel with its 400 teeth. It is a tribute to the mysterious table clock made by the famous clockmaker Jean-Antoine Lépine at the turn of the 18th and 19th centuries. As in all PW clocks, the epicyclic gearing is worked into the hub. Because the arbor of the large wheel assumes the role of spacer, the plates can be reduced to a minimum. The string barrel is activated using an offset rewinding gear.
The GRAMAT precision pendulum clock also has a long central second hand, a feature rarely seen in long case clocks. The minute wheel is located in the power train and the escape wheel arbor runs through the minute wheel’s arbor without touching it. This challenging design has never before been implemented in this form. Aside from the GRAMAT and the SARLAT, no clock currently being produced has a double escape wheel. Two wheels are used for the lift and stop functions. This design, known from astronomic precision pendulum clocks such as Rieflers’, makes it possible to provide the anchor with bearings that roll off of the lift faces, thereby preventing friction and wear. The double escape wheel also greatly improves the escapement’s effectiveness. It requires significantly less driving force, so the clock runs more gently and is more durable. The weight that provides its driving force weighs only 2.8 kg, and the clock runs for a full four months before the next rewinding.
The GRAMAT precision pendulum clock can be crafted with a highly precise gravity escapement or with the patented PW escapement that provides the pendulum with the most freedom possible. Both options make for an extremely accurate timepiece capable of achieving a deviation of less than 1/2 second per month.
Why is the Naeschke workshop always looking for new challenges? Sounding out the frontiers of physics and translating the results into harmonious objects is without question a wonderful task.
The fascination of mechanics really begins on its boundaries. It is usually a question of the boundaries of stability, of the largest and the tiniest of forces, of miniaturisation or of the greatest or the slowest of speeds. Venturing into realms such as these was always the great challenge for clockmakers. A typical case of this was the one-year precision clock, which was invented 150 years ago.
However, one challenge that had never been accomplished was to design a four-year clock. Far beyond the efficiency this brings, this clock is an expression of our times. It needs very little care or attention. It will prompt its owners daily to think about their relationship to time.
The development of this four-year clock is based on the experience in the Naeschke workshop of building a total of 75 one-year clocks. The result is an extremely robust and durable clock – and a remarkably beautiful clock of harmonious design. There is nothing and has never been anything comparable.
The enormous power, this clock needs to be driven, was the biggest challenge for Matthias Naeschke.
Here, seven wheels run in ruby or ball bearings between 6-mm thick plates. Two independent main and intermediate wheels transmit their rotation to a common third intermediate wheel. This construction, which was devised in the Naeschke workshop, permits the use of normal clock wheels, even for the great wheel. And thus the energy needed is halved. This is the basic concept behind the four-year clock.
For the escapement, we have again used the proven dead beat escapement with round ruby pallets.
The precision of the craftsman’s skills is taken to extremes in this clock: every single escape wheel is very finely balanced in a special device. Any imbalance in the wheel is eliminated by means of fine vertical drill holes at the base of the teeth.
The regulator is a compensation pendulum which was also completely developed by Matthias Naeschke. In the meantime it has been successfully used in various different clocks. Three different materials work together in this 5-rod compensation pendulum.
The case is very sturdy and torsion-free, to be able to withstand the great forces and weights involved. It is made of dark stained cherry wood, but still looks light and delicate. Silver strips surround the three-faceted glass. The clock conveys an impression of timelessness, and at the same time is reminiscent of the Empire style.