Crafted in Geneva — Est. MMXI
Ultra-Thin
CLB-D02
4.8 mm Ultra-Slim Automatic
“The thinnest statement speaks the loudest.”
$19,800
Cream alligator leather
The Ultra-Thin demonstrates Calibre's engineering mastery at its most restrained. The entire watch measures 4.8 mm from caseback to sapphire crystal — thinner than a stack of three coins — achieved through a proprietary peripheral rotor that winds the mainspring from the movement's outermost edge rather than from its centre. The 36 mm rose gold case disappears beneath a shirt cuff, its presence felt only by the faint mechanical heartbeat at the wrist.
Each Calibre timepiece is assembled, adjusted, and timed individually in our Geneva atelier. Expected lead time is 4–6 weeks from order confirmation. Complimentary delivery by insured courier.
Movement & Case
Technical Specifications
| Reference | CLB-D02 |
| Movement | CLB-UT, automatic, peripheral rotor |
| Frequency | 21,600 vph / 3 Hz |
| Jewels | 20 jewels |
| Power Reserve | 40 hours |
| Case Material | 18kt 5N rose gold, polished |
| Case Diameter | 36 mm |
| Case Thickness | 4.8 mm (total) |
| Movement Thickness | 2.05 mm |
| Crystal | Flat sapphire, 0.9 mm ultra-thin |
| Water Resistance | 30 m / 3 bar |
| Strap | Silk-lined cream alligator leather, rose gold pin buckle |
At a Glance
Every component is finished by hand according to the conventions of haute horlogerie — bevelled, mirror-polished, and signed by the watchmaker who assembled it.
Dimensions
Size on the Wrist
Case Diameter
36 mm
Case Material
rose gold
Water Resistance
30 m
Power Reserve
40 hr
The 36 mm case diameter positions the Ultra-Thin as a refined, understated presence that disappears beneath a cuff. Rendered above against a reference 65 mm wrist — actual fit varies by wrist circumference.
Horological Mastery
Complications
Ultra-Thin
Peripheral Automatic Rotor
The oscillating weight is integrated as a peripheral ring around the movement's edge, eliminating the central rotor height and enabling a total movement thickness of just 2.05 mm.
Surface Treatment
All bridges and plates receive côtes de Genève finishing, perlage, and hand-anglage to the interior angles — invisible to the wearer, essential to the maker.
Geneva Standard — since 1886
CALIBRE Horology Maison — Geneva, Switzerland
Guarantee
5-year international
Service
Free first service
Provenance
Swiss Made