Bonhams 1793 : Cvstos. A fine stainless steel dual time zone automatic wristwatch with date display Challenge Twin Time Automatic, Sold in 2006

Challenge Twin Time Automatic, Sold in 2006
21-jewel Cal.CVSTOS 551, pierced rotor in titanium and palladium alloy, semi-skeletonised dial, polished faceted hour markers, polished hands with luminous inserts, sweep centre seconds hand with red and luminous triangular tip, subsidiary dial for second time zone, aperture for date with rotating discs, brushed and polished curved tonneau shaped case, screwed exhibition case back held by four screws, screw down rubber clad crown, fitted Cvstos rubber and stainless steel strap with double deployant clasp, together with a fitted box, certificate and instruction manual, case, dial and movement signed
41mm.

Sold for HK$ 28,750 inc. premium