Circuit breaker for a Lofrans Falkon

[sailing_gal]

I recently replaced a vertical Simpson Lawrence 1500 windlass with a Lofrans Falkon (I believe in solid, heavy duty ground tackle). The SL 1500 had a 70 A breaker which I have left in place. The local engineering advice I got said it would do fine. However, upon double checking the instructions, the Lofrans manual suggests a 125A breaker for a 12V system for the Lofrans and a 70A breaker if I had a 24V system. I have a 12V system. The windlass appears to be working just fine, I have not blown the circuit while operating it.

So, my question, is there any reason that I should upgrade that breaker?