But I also bought another frame, a 1973 Juvela Special, made in Switzerland by Mondia. And I'm kind of, well, liking it a lot.
It's kind of a princess, tho, with a Campagnolo headset, bottom bracket, and seat post, none of which is very well sealed against the elements. It'll always be a fair weather ride.
The Juvela is basically a Mondia Special with a simpler paint job. They were imported by Montrose Bike Shop near Los Angeles; indeed, mine bears a Montrose decal. I bought the frame from a seller in Bozeman, Montana who was willing to keep most of the Campy components that I wouldn't be needing.
I built it up with a vintage Suzue track hub in back and a Shimano hub in front, both of which are laced to Weinmann rims with 25c Gatorskin tires. I chopped some alloy drop bars to make bullhorns (another gauche move) and added Dia Compe centerpull brakes. (Centerpulls are fussy to install but they will stop you fast. My favorite vintage brakes.)
The drivetrain has a 16t Surly cog and an old steel 44t BMX chainwheel bolted to a vintage Sugino Super Maxy crankset. (When I bought the chainwheel at Mr Michaels, they asked me if I was going to use it for a picture frame. I think they charged me $2 for it.) With a fixed gear, I like not having to worry about bending my chainwheel and a few extra ounces for steel is well worth it.
Ridiculously, the Campagnolo Nuovo Record seatpost has its two bolts on top, right under the saddle. It allows you to adjust the seat to the exact angle you want, but you have to wiggle a wrench down under the seat to reach the bolts. Luckily, my mother in law got me a Brooks cambium saddle for Christmas with a handy pressure relief hole that lets me get at the bolts from the top.
The only really tricky thing was the bottom bracket. I learned while I was riding through South Minneapolis that the Campy spindle was incompatible with my Japanese crankset. You learn this when your crank starts to fall off. For some reason Europe, Japan, and US disagreed for a long time about how these things should be built. I really didn't want to spend $200+ on a compatible Campy set.
Online forums suggested that Mondia used either Swiss or goofy French threading on their bottom brackets, meaning that the fixed cup threads may or may not be threaded in the opposite direction of every other bike in the world. Velo Orange makes a sealed French threaded BB, so I ordered one up for $60 and, well, if the Juvela's threading is French, its fixed cup is on there really, really tight. Or, it's actually Swiss threaded, which is the opposite of French but has the same weird threads per inch and I was probably just tightening the cup the whole time. Who knows? In any case, no one seems to make new Swiss bottom brackets.
In the end, I used the hollow spindle I pulled from my Trek 600 along with some new bearings and hey presto! it works great. I'll need to open it up and repack it every once in a while.
I'm glad I figured it out because, as I mentioned, I really like this bike. The other day, I caught a glimpse of it parked at our store out of the corner of my eye and thought, "Oh wow, that's a cool bike...Oh, hey, that's my bike!" The pleasures of a slow middle-aged mind.