but not a "Chronometro Gondolo": not made for Brazilian retailer between 1910 and 1927, not a reedition of an original model like the ref. 5098 and no "Chronometro Gondolo" signature on the dial.
It's a chronometer and it's part of the modern Gondolo collection (introduced in 1993), but not a part of Patek's partnership with Gondolo & Labouriau.
A great watch, nonetheless. One I really rank very high.