LEE COOPER // HAUTE TONNEAU SKELETON•REFERENCE LC07979.399
Lyam Tonneau Openworked Skeleton
Curved Tonneau Ergonomics with Architectural Blue Inner Ring & Exposed Mechanical Heart
42.0 mm (Width) TonneauMechanical Automatic Skeleton20 Synthetic Rubies8-Rivet Bezel
ACTIVE ARCHITECTURAL ELEMENT
Sculpted Tonneau Bezel
8-Rivet Industrial ScrewsBold tonneau case silhouette featuring 8 functional industrial perimeter bezel rivets and alternating brushed surfaces.
SELECT ARCHITECTURAL ELEMENT:
3 HZ HARMONIC PULSE
Mechanical Lever Escapement Rhythm
Pulsing at 21,600 beats per hour, the synthetic ruby pallets release the escape wheel exactly 6 times per second to drive the sweeping second hand.
FREQUENCY:21,600 VPH (3.0 Hz)
DISCRETE STEPS:6 Micro-Ticks / Second
BEARING:Corundum Ruby Cap
ERGONOMIC ANATOMY
Curved Tonneau Profile
Departing from traditional round silhouettes, the 42mm curved tonneau chassis naturally wraps the carpal anatomy.
8 Perimeter RivetsCobalt Inner Chapter FlangeMidnight Silicone Integration
LONDON 1908 ORIGIN // URBAN FORGE
Curved Tonneau Haute Ergonomics
- Anatomical Curvature: Ergonomically curved case back contoured to eliminate wrist pressure points across daily active wear.
- 8-Rivet Industrial Bezel: Exposed perimeter hardware evoking raw London industrial architecture and brutalist structural design.
- Exhibition Architecture: Full skeleton dial cutouts showcasing synthetic ruby pivot jewels, bridges, and spring barrel kinetics.
SENSORY COLORWAY // RAW INDIGO
The Indigo Denim & Ruby Harmony
- Electric Cobalt Chapter Flange: Vibrant blue inner track contrasting boldly with the darkened openworked bridge plates.
- 3 Hz Escapement Heartbeat: 21,600 vph balance wheel pulsing in plain view through the lower dial window.
- Integrated Midnight Silicone: Textured ergonomic sport strap engineered with quick-release spring bars for urban agility.
