Horological Meandering

Here's what I want, any ideas? No solid caseback Bonus points for movement visibility Budget of ~$30k - used Preferably steel. I dont like yellow or rose gold. ~37mm - 41mm in size I am thinking of the Zenith Defy chronograph, but it's kind of big. I coul... 

I would venture into Vacheron Malte chrono in white gold

Is the criteria really that weird haha. I just feel like the whole point of a mechanical watch is being able to see the guts and solid casebacks ruin it

Well under budget, but movement not as visible.

I’d say the most value you can get from a omega speedmaster. The Lemania movement is one of the best and beautiful. Zenith definitely also has a iconic movement can’t go wrong with that either. Ap offshore is also a possibility if you want something bigge... 

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or a Czapek Fabourg de Cracovie