Description:
Challenge case Tonneau shaped 53.70mm x 41.00mm Materials White gold. Polished and satin-finished Setting Haute Joaillierie versions available Caseback Sapphire crystal Crystal Sapphire, non-reflective coating Water-resistance 100 meters Screws Polished titanium grade 5, exclusive CVSTOS TECHNOLOGY pattern Crown Screw-down, polished titanium grade 5, rubber insert Push-piece Date corrector, titanium grade 5, polished Dial Tinted sapphire crystal, exclusive CVSTOS TECHNOLOGY decoration Index Chromed and Super-Luminova treated Hands Pierced, chromed and Super-Luminova treated Calibre CVSTOS 578 Tourbillon automatic Functions Hour, minute, second, date Characteristics Tourbillon on bridge, double barrel, instantaneous date hand Power-reserve 72 hours Jewels 28 Rotor Palladium and titanium grade 5 on a plain bearing Frequency 28,800 vibrations per hour Strap Black rubber, version with detachable links available Buckle Highly adjustable folding clasp