This Dubey & Schaldenbrand Sonnerie GMT is an automatic alarm watch with GMT feature.  It is in a 49.4 x 37.7mm x 15.3mm polished SS tonneau-shaped case with a sapphire display back secured by six fine screws.  The watch has a domed sapphire crystal and signed non-screw down crowns.  The black dial has painted white art deco Arabic numerals, sweep seconds, date at three, and 24 hour GMT indicator at six.  It features the Jaquet caliber 5900 (base cal AS 5008) 31-jewel automatic movement, and all the complications function properly.  The display caseback shows the beautifully crafted movement, nicely done by Dubey as always!  This watch is on a signed brown crocodile strap with signed tang type buckle.  The watch is pristine, without a mark or scratch on the case or crystal that I could detect.  Strap has been very slightly used.  Overall 97%+ condition!

This tonneau-shaped watch looks elegant on any wrist.  Since a recent price increase, its list price is near $6,500.  Elsewhere I have seen discounted ones sold for $3,200.  Get it for only $2,775 plus $45 shipping/handling/insurance.  Comes complete with box and papers.  Sold!