SB04-E Ruby Platinum
Never Has the Mundane Been So Special
SB04-E Ruby Platinum
4700 € Excl VAT
Limited to 150 units
Delivery From March 2025
A voucher for an additional Free Delugs strap will be emailed to you after the purchase.
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® BGW9 lume (Emits blue light).
Diamond cut indexes and ring between the dial parts
Movement
La Joux-Perret G101
- Winding Mechanism: Tungsten rotor
- Diameter: 26mm
- Height: 4.45 mm
- Frequency: 4Hz
- 24 jewels
- Power reserve: 68 hours
Case & Strap
- Material: 316L steel
- Diameter: 39.5mm
- Height: 10.3mm
- Lug to lug: 46mm
- Water resistant: 100m
- Crown: Screwdown & Lumed
- Strap: 20mm Curved Delugs CTS rubber strap with snap buckle
- Additional strap: Choose any Delugs strap for Free. A voucher will be emailed to you
More Than One Beat
Overused words like “rare” or “limited” fill the industry, but nature itself created the true rarity at the heart of this SB04-E. Ruby is an exceptionally uncommon stone, and it’s rarely used in watchmaking due to its cost and the challenge of cutting it to the desired half-millimeter thickness.
No two dials are identical, as each Ruby dial retains its unique character and natural imperfections. This individuality comes from the inherent rarity and organic formation of the stone, making each watch a singular creation.
This Ruby core is further enhanced by a platinum-plated outer ring, which features a sunburst texture and a subtle gradient around the edge. This design elevates the Ruby centerpiece, emphasizing its natural beauty and deep color while creating a striking visual contrast that enhances the watch’s overall elegance.
Clear Purpose
One of the defining features of the latest generation of Sartory-Billard watches, also present in the new SB04-E, is the sapphire disk onto which the hour markers are applied.
This sapphire disk features an inner ring made of metal, with a chamfered edge polished using a diamond tool, while the outer surfaces of the ring are circularly brushed.
The disk is adorned with even-numbered markers crafted from metal, with all visible surfaces polished with a diamond-cut finish.
The Super-LumiNova® BGW9 pad printed minute track and odd-numbered markers showcase the brand’s signature Y-shaped design, inspired by the Eiffel Tower—a nod to the founder’s Parisian roots.
At just 0.3 mm thick, the sapphire disk is treated with anti-reflective coating on both sides, allowing a perfect view on the minute dial beneath it.
Pointing The Way
The hands are slender and feature diamond-cut edges, designed to catch and reflect light vividly, creating areas of brightness and shadow that give the hands a sense of depth and volume.
Both the hour and minute hands are linear brushed and are filled with BGW9 Super-LumiNova®, while the seconds hand includes a small polished tip, also diamond-cut for a brilliant finish. These hands interact dynamically with light, enhancing their elegance while subtly drawing attention to the beauty of the dial.
Exposed Highlights
The SB04-E bezel features a concave design that reflects light and its surroundings, creating an optical effect that visually reduces the watch’s thickness.
This design also brings the sapphire crystal—and consequently the dial—closer to the wearer’s eye, enhancing its beauty. The watch case alternates between polished and brushed surfaces, with chamfered and polished edges adding a refined touch.
A signature Sartory-Billard design element is the subtle separation between the short lugs and the main circular case. Combined with the concave bezel, these design features create an optical illusion of slimness, making the watch, which measures just over 10 mm in thickness, appear significantly thinner than it actually is.
Lineage Evolution
One distinctive feature of the SB04 range was the fluted ring decoration on the movement’s rotor. This essential design element has now been relocated from the rotor to the case back, allowing for a reduction of nearly 1 mm in overall case thickness, resulting in a slimmer watch.
The fluted pattern, engraved with a diamond tool, is applied to the case back and is available in both open and closed case back variations. This design choice not only a signature that enhances the watch’s elegance but also improves its overall proportions.
Better Interaction
The watch features a screw-down crown, ensuring water resistance up to 100 meters. The crown incorporates three distinct textures: the outer teeth are circularly brushed, the inner teeth have a matte finish, and the side of the crown is also circularly brushed.
With a diameter of 7 mm, it offers excellent grip while remaining comfortable against the wrist. A unique detail is the outer face of the crown, which is filled with BGW9 Super-LumiNova®, allowing it to glow in the dark as a nighttime visual signature. This crown face also displays the logo, crafted in metal, adding a refined touch.
Form Around Your Wrist
Like all watches in the Sartory-Billard range, the 20 mm width lugs are drilled to accommodate curved straps. We are proud to announce a partnership with Delugs, and the SB04-E will come standard with a rubber strap from their collection. Delugs takes comfort and style to new heights with this Cut-To-Size FKM rubber strap (“CTS”).
Designed for a perfect fit on your wrist and secured by a sleek spring-loaded deployment clasp, this watch strap offers exceptional durability and water resistance while being easy to maintain. With the purchase of your SB04-E, you will also receive a voucher for a free strap from the Delugs collection, which you can select according to your preferences and have delivered to your home.
The Raw Material
The ruby featured in our watches is a genuine gemstone, sourced responsibly from Tanzania, Africa, and presented in its natural form as a boulder.
Recognizable by its green external crust, the ruby boulder is expertly cut into slabs and crafted into dials in Germany, just one hour from our workshop.
This ensures complete traceability and guarantees that the process is carried out under ethical, high-quality conditions, far removed from mass-production facilities or exploitative practices.