Ulysse Nardin Diver [Air]: The World's Lightest Mechanical Dive Watch Made From Recycled Materials
Revolutionary Lightweight Engineering Meets Sustainable Innovation
At Watches & Wonders 2025, Ulysse Nardin unveiled the Diver [Air] — a 44mm mechanical dive watch that weighs just 51.51 grams with its strap, making it the world's lightest mechanical dive watch. What makes this achievement even more remarkable is that the majority of its materials are sourced from recycled and sustainable sources.
Recycled Materials at the Core
The Diver [Air] represents a new paradigm in sustainable luxury watchmaking. Unlike conventional watches that rely on virgin materials, Ulysse Nardin collaborated with multiple advanced materials companies to create proprietary alloys that emphasize both performance and environmental responsibility.
The case center, bezel ring, crown, and caseback frame are crafted from 90% recycled titanium, sourced through TiFast and processed by Thyssenkrupp. The reclaimed titanium originates from the Swiss biomedical industry, where surgical-grade metals are regularly decommissioned.
The outer case sections utilize Nylo®-Foil, a carbon-composite material composed of 40% recycled carbon fiber from IMOCA sailing boats and 60% Nylo®, a Nylon 6-based polymer made from recycled fishing nets by Fil & Fab.
Material Comparison Table
| Component | Material | Source | Recycled Content |
|---|---|---|---|
| Case center & bezel | Titanium alloy | TiFast / Thyssenkrupp | 90% recycled |
| Outer case sections | Nylo®-Foil | Lavoisier Composites | 100% recycled |
| Bezel insert | CarbonFoil | CDK Technologies | 100% recycled carbon |
| Movement plates | Titanium alloy | TiFast / Thyssenkrupp | 90% recycled |
| Regulatory components | Silicon | Sigatec | Recycled silicon wafers |
| Straps | Elastic fabric | Velcro system | Tool-free swapping |
Performance Without Compromise
Despite its ultra-lightweight construction, the Diver [Air] maintains a 200-meter water resistance rating and is shock-resistant to 5,000g. The Caliber UN-374 movement features triangular bridge shapes — the strongest geometric form — and silicon regulatory components for magnetism and temperature resistance. Approximately 80% of the internal case volume is empty air, contributing to the watch's astonishing featherweight feel.
Industry Impact
Priced at $38,000 USD, the Diver [Air] joins Ulysse Nardin's standard production lineup rather than being a limited edition, signaling the brand's confidence in sustainable ultra-light technology. This move may accelerate industry adoption of recycled materials across luxury watchmaking.
Frequently Asked Questions
What is Nylo®-Foil made from?
Nylo®-Foil combines 40% recycled carbon fiber from IMOCA sailing boats with 60% Nylo®, a Nylon 6-based polymer derived from recycled fishing nets. The material is lighter than traditional carbon fiber while maintaining structural integrity.
How much does the Ulysse Nardin Diver [Air] weigh?
The watch weighs 51.51 grams total including its strap, or 46 grams for the watch head alone. A standard tennis ball weighs 56–59.4 grams for comparison.
Is the Diver [Air] a limited edition?
No. Unlike many sustainable concept watches, the Diver [Air] is a standard-production model available through Ulysse Nardin retailers worldwide.
Source: aBlogtoWatch — Hands-On: Ulysse Nardin Diver [Air] Watch (April 2025)
Also read: Sustainable Watchmaking Guide