They are not the only historical independent to use this continuation of serial numbers: Winnerl, recently restarted by Bernhard Zwinz, has done the same. The brand’s last known serial numbers went up to 555, so at their relaunch they have picked this system back up, beginning just below 600.
Frodsham clients can also choose semi-bespoke options when ordering a watch, that highlight the brand's heritage. There are case options of hard rolled 22k yellow gold, 18k white or rose gold, and stainless steel. These can be paired with any one of four dial styles; plain Arabic or Roman numerals, or either with two historical cyphers, that along with the signature and tracking are applied by vapour deposition, rather than the usual cliché printing.