The best way to reach me is via email:

pcstas[@]frederique-constant.com

I check my electronic messages often throughout the day and typically I respond quickly. However if I am traveling, in off-site meetings, or on vacation (yes, I do go on vacation), it might take a bit longer. 
(If you are a public relations person, please don’t add me to your list. Thank you.)

Email is always the best option to contact me. You may still contact me by telephone at +41-22-860-0440 or mail at:

Frederique Constant SA
Chemin du Champs des Filles 32
CH-1228 Plan-les-Ouates
Genève, Switzerland

(If you are a public relations person, please don’t phone me with PR pitches. Thank you.)

Follow me on Twitter @pcstas