RD Chrono : Precision in Motion
A purpose-built chronograph engineered where refinement meets mechanical adrenaline. Rooted in motorsport discipline, the RD Chrono anchors a dial optimized for immediate temporal clarity within a sculpted steel housing - delivering split-second certainty at the absolute limit. Driven by a relentless Swiss caliber and paired with an additional technical Cordura strap, it transitions effortlessly from high-performance timing to structured daily wear without losing a single beat of its sophisticated character.
Material : 316L Stainless Steel
Case Size : 42mm
Case Height : 15.50mm
Case Length : 49mm
Lug Width : 22mm
Bracelet : 316L Stainless Steel
Bracelet : Extra Cordura® strap
Lens : Sapphire with Anti reflective Treatment
Dial : Ice Blue - Black
Bezel : Fixed - Ionic plated Black finish
Crown : Screw-down
Movement : SW-500 Swiss Automatic
Water resistant : 20 bar / 200 meters
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Built on generations of excellence, Le Jour timepieces reflect strict Swiss manufacturing standards, undergoing rigorous quality control for ultimate reliability.
Expressing the raw spirit of motorsport through a refined lens, the RD Chrono relies on precise structural geometry. Its stainless steel case features alternating satin-brushed planes and mirror-polished bevels that emphasize deep visual depth and tactile contrast. Paired with an interchangeable Cordura® nylon strap, it delivers effortless adaptability - balancing trackside utility with understated elegance in any setting.
Designed as a high-performance instrument panel, the layout relies on a striking, high-contrast palette for instant legibility. Deeply inset black azurage sub-dials are sharply juxtaposed against a metallic Ice Blue dial face, creating exceptional visual texture and graphical depth. This cold, technical architecture is anchored by bold Arabic numerals and sharp, vibrant red accents that pinpoint critical elapsed intervals at a glance. A bi-colored inner rehaut heightens the depth of the display, while Swiss Super-LumiNova and an anti-reflective sapphire crystal ensure uncompromising optical clarity under any lighting condition.
At the core of the RD Chrono lies the Swiss Sellita SW-500 automatic chronograph movement, an engine chosen for its unyielding mechanical stability and split-second accuracy. An exhibition caseback exposes the internal architecture, highlighting a custom-finished rotor designed exclusively for Le Jour. The construction seamlessly merges high-frequency timing capability with a premium mechanical finish - a robust expression of Swiss horological engineering.

