Catalog's reference : 10-509120 Mecanic Movement with a Tourbillon. Steel Polished Wath-case. Diameter : 42 mm.
40 Hours in working reserve.
White dial.
Watch-case's bottom is transparent, letting toappear the mechanism.
Grand Date Guichet at 2, circular indicator.
Leather black strap with tongue clasp.
Delivered in splendid and luxurious box out of sawn timber papered