De Bethune's foundational hand-wound caliber featuring the brand's core innovations. Uses self-regulating twin barrels for 6-day power reserve, titanium balance wheel with white gold inserts optimized for temperature and air penetration (patented 2016), De Bethune flat terminal curve balance spring (patented 2006), and silicon escape wheel. Features hand-crafted finishing with Côtes de Bethune decoration, hand-snailed barrels, and hand-polished chamfered steel parts. Total of 160 components.
Movement Type
Manual Wind
Jewel Count
27 jewels
Power Reserve
144h
Frequency
28,800 vph (8 Hz)
Diameter
30mm
Display Type
Analog
Shock Protection
Triple Pare-Chute
BRAND
De BethuneTYPE
Manual WindSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2004COUNTRY
SwitzerlandALSO KNOWN AS
