Thomas Prescher

"Triple Axis Tourbillon with constant force"


by Thomas Prescher and ThePuristS
edit 1
Đ December 2003

 

Thomas Prescher is a watchmaker extraordinaire:


four tourbillons

click on the picture to enlarge

 

After his apprenticeship he worked for IWC, Audemars Piguet and Guebelin AG where he was responsible for complicated, vintage/antique and unique pieces. Until 2002 occupations at Progress Watch AG and Blancpain followed.

Since 2002, Thomas Prescher has been independent, running his own atelier in the beautiful landscape of Twann, Switzerland. His work includes the care and restoration of complicated haute horlogerie pieces and developing his own creations. He is amazing in what he has accomplished at his young age.


the atelier

click on the pictures to enlarge

A candidate for membership of the AHCI or Horological Academy of Independent Creators, his skills and creativity are reflected by pieces like the unique Falcon watch and the challenging double-axis-tourbillon (click here for a recent article):


The dual-axis tourbillon

click on the pictures to enlarge


the dual-axis tourbillon in motion

For more detailed informations, we recommend to visit Thomas Prescherīs website: www.Prescher.ch.

 

Thomas Prescher latest surprise is an even more stunning piece:


the Triple Axis Tourbillon


which immediately was nick-named "TAT".

We are proud and honoured to present the worldīs first picture of this remarkeable creation:


click on the picture for larger view


Detail picture of the tourbillon carriage
click on the picture for larger view

 

Among the most stunning differences: Unlike the Dual Axis Tourbillon, "TAT" is a wrist watch size movement!

Thomas Prescher emphasizes "TAT" was not made to increase the accurary, the level of finishing or the use of hard-to-work materials. All of this has been done before, the intention "TAT" is to go new ways in a completely new direction.

His basic goal, in his words: "To do, what was regarded impossible by all before".
Apparently, he succeded!

Two major brands turned down his offer to produce the watch for them, stating it would be impossible to do this watch even with a team of five person in one year.

But instead of resigning, he started to develop "TAT" on his own. To some degree motivated by the idea to demonstrate it is possible to do in less than a year and by himself, the first line on a CAD computer based development tool was drawn on 13th of June 2003.

In order to minimize production delay due to backorder for the parts which had to be done by third-party companies, he had to find new partners. And he succeeded in finding them outside the core watch industry; instead of nine months several key parts of the movement could be done in only four weeks.

The pure outer data certainly donīt do this magnificent piece sufficient justice, but give some impression how elaborated this movement is:

 

Movement
Diameter:37 mm
Height:5.43 mm without bridge over the ratchet wheels
6.46 mm with bridge over the ratchet wheels
Height of the rotating tourbillon:12.2 mm
Beat rate / frequency:21.600 beats per hour
Number of barrels:2
Power reserve:42 hours
Number of jewels:67
Number of sub dials:3
Indications:minutes and hours; seconds; tourbillon

 

Tourbillon
Number of axis:3
Bearings:all flying
Revolving time first axis:1 minute
Revolving time second axis:1 minute
Revolving time third axis:1 hour
Remontoir/force constant:in the cage, first axis
System of force constant:slowness of weight
Reloading time of constant force:with every beat
Diameter of balance:9.5 mm
Diameter of cage:13.4 mm
Diameter of the complete Tourbillon:inner diameter: 15.6mm
outer diameter: 23.1mm
Weight of the first axis:0.347 g
Weight of the first and second axis:0.766 g
Weight of the turning Tourbillon parts:2.879 g
Weight of the complete Tourbillon:4.472 g

 

Special features:

  • The complete Tourbillon rests in flexible springs to absorb any shocks.
  • The third axis is synchronized with the minute hand, with each revolving one time per hour.
  • The time setting turns the third tourbillon axis, so minute hand will rest synchronic with the third tourbillon axis.

 

Jewels total:57
First axis:15
Balance:5
Escapement: 4
Constant Force:4
Axis:2
Second axis:6
Arm:2
First reduction axis:2
Second reduction axis:2
Third axis:18
Ball - bearing:10 Balls
diameter 0.6 mm each
Setting mechanism:4
Driving train of gear:4
Time indicating system:4
Movement:18
Time indication system:12
Driving mechanism:6

 

Case:
Material:Platinum
Diameter: 41 mm
Length (over lugs):53.58 mm
Weight :96.7 g
Height total:16.1 mm
Strap:Leather
Buckle:Platinum
Developing time:very long
Prototyping:about 12 weeks

 

Sincere thanks to Thomas Prescher for providing the pictures and insights,
ThePuristS

 


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