Up for grabs is an IWC GST Chrono
Reference 9557 seldom seen 37mm, calibre 631 quartz movement watch. This is the watch as 3727 but in solid yellow gold. Please see the scan of period IWC catalog with reference numbers.
This model has been made in small quantities in early 1990’s with tritium dials.
This is a heavy, 212 gram watch and worth over $6500 in gold weight alone.
Watch is in excellent used condition with light signs of wear. All original, with tritium hands and dial. Serial number is clearly visible on caseback.
Bracelet is original with folding clasp, signed IWC. Fits about a 7.5″ wrist.
No box or papers. No documented service history. The watch runs, date changes, but the chrono is not running or resetting.