The Ultrathin Tourbillon Platinum features a dial crafted with Arnold & Son’s ‘Cosmic Grené’ technique, where gold and aluminium powder create a subtly textured, starlit surface. Its A&S8300 calibre, just 2.97 mm thick, ranks among the slimmest ever designed, with a triangular tourbillon carriage evoking a sextant, a historic celestial navigation instrument. Limited to 28 pieces.
Product Reference
1UTBX.F01A.C208A
Movement
A&S8300, 1 minute flying tourbillon, manual winding
Display
Hours, minutes
Case Material
Platinum (PT 950)
Case Color
Silver
Dial Color
‘Cosmic grené’: gold powder mixed with green aluminium sparkles
Band Type
Strap
Strap/Bracelet Material
Green alligator leather with platinum (PT950) thread, hand-stitched
Strap/Bracelet Color
Green
Dimensions
41.5mm (w) × 41.5mm (l)
Caseback
Sapphire case-back
Water-Resistant
30 m