Equipped with a manufacture movement, the BR-X5 Lum collection continues to write the history of the Lum saga, pushing the limits of creativity and innovation thanks in particular to the use of LM3D, a luminescent composite.
Bell & Ross has revolutionised luminescence by transforming it into a veritable aesthetic signature. Since 2017, the Lum collection has been exploring new horizons with innovative materials such as Super-LumiNova®. In 2023, the BR-X5 Green Lum pushed the limits of this technology even further with an entirely luminescent case, created using the exclusive composite LM3D. In 2024, a new version, the BR-X5 Blue Lum, will complete this offering, emitting a striking blue glow.
Bell & Ross has developed an innovative luminous material for the BR-X5 Lum: a composite combining epoxy quartz fibre, luminescent material and resin. This material ensures uniform luminosity and is exceptionally lightweight, being 70% lighter than steel. The BR-X5 Blue Lum offers a new colour option with its powerful emissions of blue light.
The BR-X5 Blue Lum, equipped with a COSC-certified manufacture movement, offers a power reserve of 70 hours. Cut from a block of grade 2 titanium with a DLC finish, the container which houses the mechanism is inserted between two shields in LM3D, a photoluminescent composite material. The movement and case come with a 5-year guarantee.
MOVEMENT
Calibre BR-CAL.323. Manufacture. Automatic mechanical. Approximate power reserve of 70 hours.
FUNCTIONS
Hours, minutes and seconds. Date window at 3 o'clock and power reserve indicator at 9 o'clock.
CASE
41 mm wide. 12.80 mm thick. Container in Grade 2 microblasted titanium with DLC (diamond-like carbon) finish. Upper and lower inserts in blue luminescent quartz fibre composite. Fixed bezel in Grade 2 microblasted titanium with bezel insert in luminescent composite. Screw-down crown and crown guard in Grade 2 titanium. Case-back in Grade 2 microblasted titanium with smoked grey sapphire crystal with anti-reflective coating. Case-back with oscillating weight.
DIAL
Matt black. Block applique indices in blue Super-LumiNova® filled with black lacquer. Skeletonised hour and minute hands coated in blue Super-LumiNova® (blue glow) and filled with black lacquer. Black flange with 60-minute scale and blue transfer.
CRYSTAL
Sapphire with anti-reflective coating.
WATER-RESISTANCE
100 metres.
STRAP
Openworked black rubber.
BUCKLE
Folding. Steel with DLC (diamond-like carbon) finish.

