Bianchet
Bianchet has 29 watches in the database across 4 model families. Lug-to-lug runs from 47.4 mm to 51 mm, with a median of 51 mm, alongside case diameters of 40 mm to 43 mm and thickness of 9.8 mm.
100% of them sit in the balanced range on a 6.5-inch wrist.
The most documented families are B 1.618 Flying Tourbillon Grande Date (12), B 1.618 UltraFino (9), and B 1.618 Flying Tourbillon Sport GMT (7).