Bucherer Archimedes World Time Chronometer

Bucherer Archimedes World Time Watch. Technical data: calibre designation 2892-2 Eta with exclusive world time module (24 hours), patented 1993 (US7897693A) by Tiffany & Co, New York. Diameter of Movements: 27.0 mm. Thickness of vibration: 28'000 semioscillation per hour (Hz). Power Reserve: over 40 hours. Jewels: 21. Finish: Côte de Genève. Special Features: high-precision chronometer movement with official watch rate certificate, rapid date advance, second stop, fine adjustment mechanism, displays the local time of the major cities in the 24 time zones.The clockwork with a patented world time module was exclusively produced for Bucherer Archimedes and Tiffany Streamerica between 1993-99 by Dubois-Dépraz manufacture de complications (Le Lieu, Suisse). Only a low number of this watch h