Many books begin their stories with a prologue. I decided to begin my story with the “Prologue” watch. It took almost two years to go from a passionate idea to a finished product. The “Prologue” is equipped with a black ring that rotates around the entire watch case. All three basic functions of a normal crown-function are easily accessible by the selector located on the case at four o’clock. Pure and authentic lines, aesthetic simplicity and mechanical ingenuity; this is how the “Prologue” has been described since its appearance.


Le Noirmont, Switzerland    18 karat rose or white gold,
weight ca. 100 grams
Diameter 44 mm
Water resistant to 3ATM
Sapphire crystal with antireflective coating
Turning Ring
Le Noirmont, Switzerland    18 karat gold with soft touch coating
Deployment Buckle
La Chaux-de-Fonds, Switzerland    18 karat rose or white gold, weight ca. 25 grams
with security lock system
Movement “PROLOGUE”
Zürich and La Chaux-de-Fonds, Switzerland    Movement Caliber 2010
Power Reserve indication, 42 hours
28’800 vibrations per hour, 22 jewels
Push selector system
Oscillating mass in 22 karat gold mounted onto MPS
Microsphere Prodige ball-bearings with 7 ceramic micro balls

apMarc Jenni, Prologue