1520 Balance in a 1570

[Ronin]

I stumpled upon an eBay sale of 1570 powered watch that much to my surprise had a 1520 Balance installed in it.

 

After some Google searching, another thread was discovered on TRF which appears to support its intechangeability.  (Both 1570 & 1520 - 19,800BPH)

 

Based on this information, if you should find yourself DIY servicing a 1570, and say don't want to mess with the micro-stella regulating tool-- a 1520 Balance can be dropped in and regulated like the ETA & Miyota(based) movements we are used to regulating.

 

Now I realize this is probably a sin to many, but it does provide options.  Thoughts?

 

 

[freddy333]

The Microstella system is better than most non-Microstella systems in that it allows a much finer adjustment, but I guess if you have no other choice.