In development — Limited edition
THE RECORD ATTEMPT

NELIUBIN ROMAN INDEPENDENT ATELIER 02
CARBON LIGHT

A 5-gram titanium flying tourbillon, cut into a single block of carbon. No case joints, no spring bars, no screws anywhere on the piece — built to be among the lightest tourbillons ever put on a wrist.

11.00-GRAM HEAD · ONE-PIECE CARBON MONOCOQUE · 10000G SHOCK · 5-GRAM TOURBILLON
SCROLL
6.94MM CASE THICKNESS 2.00-GRAM STRAP — DYNEEMA WEAVE REHAUT WITH FLOATING COLUMNS — 0.70G
01 — OVERVIEW
An innovative, lightweight titanium flying tourbillon movement inside a one-piece carbon monocoque case.

01 SILICA proved the seam could disappear. 02 CARBON LIGHT removes it entirely. Bezel, case middle, and caseback floor are cut from one continuous block of carbon composite — no horizontal joints, no internal fastening tubes, no lateral ears.

The strap threads straight through milled slits in the case wall. No spring bars, no screws, anywhere on the piece. What's left is a case built around one goal: to carry a 5-gram titanium flying tourbillon as one of the lightest tourbillons ever put on a wrist.

Engineered head weight: 11.00 g13.00 g on the wrist with the strap — reasoned component-by-component below, not a rounded target.
02 — THE NUMBERS

Chasing the lightest
tourbillon on record.

11.00GRAM
The watch alone, without strap — reasoned build
10000G
Shock resistance
0.70MM
PMMA crystal thickness
6.94MM
Case thickness, fixed
2.00GRAM
Strap only — Dyneema web-weave
LTD
Limited edition
13.00g mass budget
Movement — titanium flying tourbillon5.00g
Case — one-piece carbon composite monocoque3.06g
Crystal — PMMA plastic, flat-top spec, dial side only0.87g
Rehaut, Al-Li floating columns & hands0.70g
Crown & winding stem — titanium core, carbon composite ring0.58g
Carbon movement-mounting frame — ring + 4 struts, seated on gaskets0.74g
Seals & gaskets — crystal gasket, case-to-crystal ring, crown O-rings0.05g
Total — head only11.00g
Strap — Dyneema weave2.00g
Total — on wrist13.00g

Case mass scaled from 01 SILICA's quartz composite case (4.20g) by density ratio (1.55g/cm³ carbon vs 1.98g/cm³ quartz composite) and thickness ratio (6.94mm vs 7.44mm). Crystal is PMMA plastic (~1.18g/cm³) at 0.70mm, following a flat-top, no-sapphire methodology for this piece. The movement sits in a dedicated carbon mounting frame seated on gaskets, seals throughout add 0.05g, and crown & stem are reasoned from titanium-core/carbon-ring cap geometry scaled to this case's 6.94mm thickness.

All figures on this page are current engineering targets, based on final CAD and confirmed material densities — not measurements from an assembled unit. Final production figures may shift slightly once the first pieces are built and weighed.

03 — ARCHITECTURE

Four decisions that
chase the record.

01/04

One-piece carbon monocoque

Not two parts like 01 SILICA — one. Bezel, case middle, and caseback floor are a single canister, machined from one block of carbon composite with walls down-gauged to 0.50–0.60mm wherever load allows.

Every case across the entire NR series — every model, every edition — comes from a single specialist manufacturer.

02/04

Loop-through Dyneema interface — 2-gram strap

The strap threads directly through precision-milled horizontal slits in the 12H and 6H case walls. No spring bars, no screws — full elimination of external strap hardware, at just 2.00 grams.

03/04

Clamping rehaut with floating columns — 0.70-gram

Same architecture as 01 SILICA — four sectors, each carrying its own index well, plus four further columns suspended separately on guide rails — but every non-structural section is thinned further here, down-gauged to 0.70 grams combined with the hands. The floating columns and the hands are cut from Aluminium-Lithium.

04/04

Rigid contact caliber mount

The 5-gram titanium movement drops in from the dial side and sits in direct contact with the carbon vault. Under shock, energy transfers instantly across rigid planes instead of flexing through soft mounts.

Crystal: 0.70mm PMMA plastic (flat-top, no sapphire). Movement: custom flying tourbillon, 100% Grade 5 titanium, 5.00 grams.
04 — INQUIRE

A limited edition.
Built to be among the lightest.

02 CARBON LIGHT is in active development. Each piece is considered individually, one client at a time — reach out to follow the build or discuss a reservation.

Start a conversation info@nr01silica.com