Friday, May 8, 2015

Atelier Fritsch Clock “Le Cercle”

The clock “le cercle” is the first Clock from the Atelier FRITSCH. This clock is a so-called “cercle tournant.” It is a type of clock in which the hands stand still and time is displayed by turning numerical rings, hence its name “Le Cercle”. The clock is a basic cylinder shape, with the measurements 288mm x 144mm (height x diameter).
The clock work movement has a time display and a half hour striking mechanism. A hammer underneath the movement strikes a solid gong rod. The numerical rings are made from technical ceramics, the indices and digits are baked in. The base and the top each consist of 8 pieces of black lacquered, vertically grained wood. In between is a glass case through which the clock movement can be clearly seen. The escapement has 18000 a/h. The round clockwork movement is horizontally built-in, the wheels (cogs) are arranged around the central axis. The wheels and pinion are pivoted on ball-bearings. The construction of the motion work and the winding mechanism are distinctive. The lid of the clock is positioned on the clock work movement.
A solid steel rod is positioned in the centre of the upper plate, on which the top is fixed with a lid. The motion work and the Rack striking-work are constructed around this solid steel rod. The motion work is indirectly driven via the minute-wheel. The hour wheel alone has a diameter of 66mm with 120 teeth. The cannon-pinion and hour wheel are ball-bearing pivoted. To wind up the clock, the upper lid can be removed. The wind-up key and central keyhole are located underneath. The clock work movement and striking mechanism can be wound up by turning the key in either direction. The winding shaft leads through the central rod (on which the lid is placed) to the backside (underside) of the clock work movement.
The power is transferred to both “going barrels” with the help of a stop work mechanism. At the other end of the winding shaft, on the underside of the plate, is a toothed wheel. The motion movement of the winding shaft is conveyed via an intermediate wheel to another wheel, which is mounted on the axis of the “going barrels”. On the winding shaft there is a ratchet wheel. The ratchet braces link into the ratchet wheel when rotating, and the mainspring is wound up. In the other direction, the wheel turns in neutral.
Both stop work mechanisms are designed so that regardless in which direction it is turned, one side gets wound up while the other turns idly. The clock work movement is gold-plated and runs for 14 days. It is available with an open glass, or a completely closed case. The escapement is on the underside with an engraved base plate and a balance bridge of steel, which follows the curve of the plate. All screws are made of steel. The cylinder screws of the plate, the winding mechanism and the stop work mechanism are smooth polished. When combined with the wooden column, it becomes a free-standing clock. The height can be chosen freely, adapted to suit any room.
 Technical details
• Horizontally constructed mechanical 14-day clockwork with 1 central winding system
• Unique ball bearing mounted dial-train
• Dial rings made from precision-cut technical ceramic, hand-painted,
• Gold-plated clockwork, horizontally built, equipped with ball bearings
• Ball bearing mounted barrels and winding system
• Half-hour striking mechanism on a solid gong rod
• Precisely regulated escapement system, 18.000 beats per hour
• Compartment for winding key under the lid
• Individually numbered clockwork calibre “Fritschwerk 2012”
• Option of sturdy wooden casing or glass casing with exposure of the gold-plated clockwork
• Clock measurements excluding column: Height 288mm x Largest cross-section 148mm
• Combined with the column, it forms a long case clock

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