Hublot · Classic Fusion
Strap for Classic Fusion 45 Chronograph Ceramic / Blue
Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.
Integrated bracelet
The Hublot Classic Fusion 521.CM.7170.LR is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.
Case diameter45 mm
Reference521.CM.7170.LR
FamilyClassic Fusion
MovementHublot caliber HUB1143 hours, minutes, small seconds | date | Chronograph
CaseTitanium, Ceramic, Resin
The Classic Fusion 521.CM.7170.LR, seen from the bench
The Hublot Classic Fusion 45 Chronograph Ceramic (reference 521.CM.7170.LR) combines brushed titanium grade 5, black ceramic inserts, and resin in a 45mm case with integrated lugs measuring 20mm width. Powered by the HUB1143 in-house movement featuring chronograph, small seconds at 9 o'clock, and date, this timepiece delivers both technical precision and layered material construction. The integrated lugs are machined directly into the case body, requiring 20mm straps with 1.5mm spring bars in stainless steel or titanium for proper fit.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only