The SB04-E “TANTOSTER”

From Sartory Billard -

Courtesy of Sartory Billard

This is the latest from Armand Billard, and is an exclusive offering partnering with Oster Jewelers -

Sartory-Billard × Oster Jewelers — The SB04-E “TANTOSTER”

Per Sartory Billard -

We’re proud to unveil the SB04-E “TANTOSTER”, a limited collaboration between Sartory-Billard and Oster Jewelers in Denver.

This edition pushes the boundaries of traditional craftsmanship. For the first time, the timeless “grand panier” guilloché pattern has been engraved on tantalum — a noble metal revered for its deep grey tone, remarkable resilience, and near-impossible hardness.

Each of the ten dials represents an experiment in patience, precision, and perseverance — a study in how light dances across one of Earth’s rarest materials.

The result: something quietly extraordinary. A watch that balances texture and tone, strength and grace, made for those who seek the uncommon.

And for those who appreciate the craft behind the art — every half dial machined required a new cutting tool, as tantalum relentlessly wore down each one. Ten dials, countless tools, infinite dedication.

SB04-E “TANTOSTER” — limited to ten pieces worldwide.
Now available exclusively through Oster Jewelers, Denver.

US $ 6850 - price includes delivery and tariffs -

You can find more details here -

 
https://www.osterjewelers.com/products/sartory-billard-sb04-e-tantoster