Corum presented a new version of its legendary Golden Bridge model whose distinctive tonneau-shaped case is made in black ceramic, one of the toughest materials to work with.
In fact, the process that brings to the final case of the Ceramic Golden Bridge is complex and delicate. As Corum describes, crystals are injected into a mold at around 980-bar pressure and the material must be uniformly spread so as to avoid any roughness in the resulting surface texture. The next step is a 30-second firing in a furnace heated to 160°C in order to harden the still porous material. This phase causes the ceramic to shrink by about one-third of its volume in order to reach its final size of 34 x 51 mm.
The crown, positioned at 6 o'clock, gives the impression of being an extension of the vertical hand-wound CO 113 movement. Beating at the frequency of 28,800 vibrations per hour and endowed with a 40-hour power reserve, the movement features two pillars visible on the bridges and ensuring enhanced resistance and rigidity. Framed by four sapphire crystals forming the upper glass, back and sides, the baguette movement can be fully appreciated from any angle.
The red gold mainplate is also adorned with delicate hand engravings embodying the finest watchmaking traditions. The open worked baton-type hands stand out against the movement emphasising the fact that the Ceramic Golden Bridge has no dial.
The alligator leather strap fitted with a black PVD-coated pin buckle completes this timepiece.