“FS: 1928 Zenith Jumbo Tank – .900 Silver | Archive Extract | Triple Signed – $1,250

For sale is an uncommon and beautifully documented 1928 Zenith “Jumbo” Tank, housed in a substantial .900 silver case and accompanied by an official Extract from the Zenith Archives confirming its production date: July 6, 1928.

At 98 years old, this is more than simply a vintage Zenith—it is a remarkably charismatic piece of the manufacture’s history, with provenance directly from Zenith itself.

THE WATCH

The watch is triple signed—dial, case, and movement—and retains the wonderful…

“FS: 1928 Zenith Jumbo Tank – .900 Silver | Archive Extract | Triple Signed – $1,250