The 5157 BA and the 5140 BA have both the same caliber ( 502.3 ) This pictures taken from the web are the 502.3 caliber Regards [img]http://img2.pict.com/7f/e3/d8/3342186/0/800/breguetimage.jpg[/img] [img]http://img2.pict.com/61/9b/b4/3342187/0/breguetimage.jpg[/img] [img]http://img2.pict.com/4f/4b/
that .........I wish less size on tourbillon not the dial and fusée. Three diameters with the same measure don´t like me. Beautiful pics. Thanks Amanico