Hublot · Classic Fusion

Strap for Classic Fusion 45 King Gold / Blue

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter45 mm
Reference511.OX.7180.LR
FamilyClassic Fusion
MovementHublot caliber HUB1112 Hours, Minutes, Seconds | Date
CaseTitanium, Red Gold, Resin

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Classic Fusion 511.OX.7180.LR

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Classic Fusion 511.OX.7180.LR, seen from the bench

The reference 511.OX.7180.LR belongs to Hublot's Classic Fusion line, a collection that has redefined contemporary luxury in Swiss watchmaking since its introduction. The OX designation identifies the combination of titanium and rose gold, while structural resin integrated into the case creates a material contrast. The Classic Fusion features a 45mm case diameter in aerospace-grade titanium, rose gold accents, and black resin panels. The movement is the Hublot HUB1112 caliber, an automatic mechanism with hours, minutes, central seconds, and date. The lug width measures 20mm.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only