Hublot · Classic Fusion

Strap for Classic Fusion 42 Black Magic

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

Lug width20 mm
Case diameter42 mm
Reference542.CM.1171.RX
FamilyClassic Fusion
MovementHublot caliber HUB1110 Hours, Minutes, Seconds | Date
CaseCeramic, 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 542.CM.1171.RX

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Classic Fusion 542.CM.1171.RX, seen from the bench

The Classic Fusion 42 Black Magic reference 542.CM.1171.RX belongs to Hublot's Classic Fusion collection, which since 1980 embodies the "Art of Fusion" philosophy. The 42mm case combines high-density black ceramic with resin in a material dialogue unusual in contemporary watchmaking. The ceramic provides Vickers hardness superior to steel and scratch resistance, while resin lightens the case structure for comfortable wrist wear. The case houses the Hublot HUB1110 automatic movement with hours, minutes, seconds and date indication. The 20mm lug width balances the case mass with strap proportion, a distinctive design trait of the Classic Fusion.

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