The table clock NT 12 is proof that the mechanics of clockmaking are limitless.
The movement is a real powerhouse. Two weighty barrels together provide nearly 20 kilograms of spring force that pull on a single steel wire of just one millimetre diameter. Thus the entire power is transmitted to the fusee and through it to the going train. A conventional fusee chain would not withstand this enormous burden and break unpredictably.
So why does the NT 12 require so much more energy than similar spring-driven movements? This is due to the considerable running time of more than one year – 13.5 months, to be precise. The wheels and the entire frame of this clock have been proportionally sized for this purpose. The pillars which connect the main plates to each other are positioned so that there may be no distortion. Much of the beautifully finished gilded mechanism is visible through its creative design and arrangement.
The movement sits on four solid columns forming a platform. Of the two integrated barrels only one is visible. It is separated from the gear train and is placed centrally at the foot of the columns whilst the other barrel is concealed in the base of the clock. In addition to the time display on a sterling silver dial the NT 12 also has a separately arranged power reserve indicator. All parts are dimensioned slightly larger in this clock as is the winding key which is a perfectly proportional match.
To celebrate the pleasure of handling the key after a full year it was allotted a separate drawer in the wooden base of the case.
Table clock NT 12
Matthias Naeschke caliber 12
Power reserve: 13.5 months
Spring drive with double barrel and fusee
Main plates of 4 mm brass with 5 pillars
All brass parts are either high polished or finely sanded and gold-plated
Pinions and arbors are hardened and polished
Matthias Naeschke escapement with compensating pendulum
Frequency: 108 beats per minute
6 ruby bearings and 2 ruby pallets
8 precision ball bearings
Chaptering of solid sterling silver with hand engravings
Separate indication of the power reserve
Blued steel hands
Cherry wood base with drawer for the winding key
Alignment of the case by 4 large screws on each corner of the case
Solid multi-piece glass shade with 5 bevelled glasses and a front door
A drawer accommodates the winding key
(Height x Width x Depth): 63 x 42 x 32 cm
Case base made of various materials
Rhodium or rose gold plating for the movement and case
Bespoke variations possible