Sartory Billard SB04-E Ruby Platinum | LE150 | Pre-Order

The Sartory Billard SB04-E Ruby Platinum is a celebration of nature’s most exquisite material—ruby—transformed into a striking horological centerpiece. At the heart of this timepiece lies a Cœur de Rubis dial, carved from natural ruby stone, known for its deep red brilliance and powerful symbolism. Rarely seen in watchmaking due to its difficulty to shape and refine, ruby’s organic texture and color variations make every dial truly one-of-a-kind. Surrounding this captivating core is a platinum-coated fume outer ring with a sunburst finish, creating a dramatic contrast that highlights the ruby’s natural vibrance. The sapphire disk that overlays the dial is a hallmark of the SB04-E series, precision-crafted with a polished inner metal ring and circular-brushed surfaces. Applied hour markers, with diamond-cut even numbers and a Super-LumiNova® BGW9 minute track, feature Sartory Billard’s signature Eiffel Tower-inspired Y motif—an elegant nod to the brand’s Parisian roots.

Ref. SB04E1RUB1

Powering the SB04-E Ruby Platinum is the Swiss-made La Joux-Perret G101 automatic movement, offering a 68-hour power reserve, 4Hz frequency, and 24 jewels. Housed in a 39.5mm 316L stainless steel case with a slim 10.3mm profile and a water resistance of 100 meters, the watch balances durability with refined elegance. The case is paired with a curved 20mm strap and offers customization with a broad range of luxurious materials and colors. With a screw-down lumed crown and 46mm lug-to-lug length, the SB04-E Ruby Platinum embodies Sartory-Billard’s bespoke philosophy—where art, engineering, and the raw beauty of nature converge in a truly unique luxury watch.


TECHNICAL SPECIFICATIONS
Calibre
- La Joux-Perret G101
- Tungsten rotor winding mechanism
- 26 mm diameter
- 4.45 height
Functions
Hours, minutes, seconds
Power reserve
68 hours
Jewels
24
Frequency
4 Hz
Case
316L Steel
Measurements
- 39 mm diameter
- 10.3 mm thickness
Water resistance
100 meters
Crown
- Screw-down and lumed
Dial
- Cœur de Rubis (Heart of Ruby) surrounded by a Fume Platinum coated outer ring
- Pad printed minute track and Y design in white Super-LumiNova BG79 lume (emits blue light
Diamond cut indexes and ring between the dial parts
Strap
- Available with a wide collection of straps in different colors and materials
- 20 mm curved
Limited edition
150 pieces


Oster Jewelers is an Authorized Lederer Watch Retail Partner