Alfred Helwig’s Flying Tourbillon in Wrist- and Pocket Watches

A history of the invention by Dr Helmut Crott..

The GPHG (Grand Prix d'Horlogerie de Genève) will take place on November 13, 2024

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La «faccia» di un orologio, una storia appassionante

Corriere Della Sera

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"LE CADRAN": UN BEST-SELLER

Europa Star : December 2023

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Urban Jürgensen, Then And Now

Hodinkee : November 2023

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Happenings A Special Exhibition To Celebrate 250 Years Of Urban Jürgensen

Hodinkee journal : October 2023

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Can And Should Watches be Investments ?
A collected Man, June 2022

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Obituary: Giovanni Zavota, Vintage Watch Dealer
SJX, january 2022

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The Art of Enamel Dials
Collected Man on June 2021

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Claude Sfeir - Collects only the crème de la crème
Europa Star, TB, April 2021
 

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Dr. Helmut Crott, les enchères lui doivent leurs centaines de millions
JSH, avril 2021

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Auktionshaus Dr. Crott versteigert ab Mai im Mannheimer Hafen
Rhein-Neckar-Zeitung, december 2019

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The birth of watchmaking in glashütte
Masterworks of Time, november 2019

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InGenf schlägt die Stunde derUhrmacher
November 2014

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Where Time Never Gets Old: Visiting TEFAF, The World’s Premier Fine Art Fair
Quillandpad, March 2014