The RM005 would be the first and the instinctive design and size RM that the man said he wanted to make (after the tourbillons) for the mass market.
This from his own lips when I first met him in Geneva in the year before the RM 005 appeared on the market.
The 010 is "probably" a response to the market, rather than from the man's mind. I feel that it is not really important for the 005 or 010 in most cases, as it is a watch that is from the mind of the man..not so much from the heart..and in a way..that makes the watch "pure". It is meant to communiate cold and logical adjectives.