Hi Vince,
Yes, these are very lovely watches, the 3137 being a particular favourite of mine, probably because of the link with Breguet's original No.5. Even though they are both around 35mm in diameter, because of the large crystal going to the edge of the case, both the 3330 and 3130/7 wear quite large on an average sized wrist. The whimsical moonphase adds a nice contrast to the classical case.
Andrew