想買Nav B-Uhr 47 Handaufzug青銅款來玩玩，
ETA Unitas 6497-1手上鍊機芯，
The question is really if you like the watch that much. If you do, then go for it. However, if you just like the way it looks because it similar to more established brands, then my advise for you is saving your money now and but the real thing at a later stage.