Let's do the maths.
He's passionate, was at Tempus, and will 'only' take a year to deliver (therefore a small or Independent manufacture).
You're a collector of fine taste and passion (you're a Purist: you were at Tempus).
Conclusion: "Swiss" the watch may be, but not necessarily its maker. Your watch will be rectangular and will feature an exquisitely re-worked vintage calibre.
Cheers,
pplater.