Breguet

I prefer the Cal. 591

Hi lutz,

The cal. 502 is just too thin for its own good in my humble opinion and suffers slightly decreased accuracy and reliability because of it. It is a highly serviceable design in the sense that everything is exposed and easy to get to (which is not to say it's easy to work on exactly, due to the extremely delicate hairsrping), but the the open barrel coupled with the ultra-thin balance and escapement combination lead to a decreased service interval if worn every day. The constant slipping of any automatic mainspring generates some debris that can't help but find its way into other parts of the movement due to the absence of a barrel cover and you end up with it stopping or the accuracy going off earlier than it might otherwise.

The Cal. 591 is in all ways more accurate, more robust and more reliable IMHO, but it is a little thicker too of course.

_john

Question about the movement Breguet 5140

By: cbo : June 7th, 2007-02:39

Hi, Here is my new Breguet. I read many discussions about the movement of this watch and I have some questions. Breguet say this is a Caliber 240 Q Ultra-thin self-winding mechanical movement. I read on other messages that the movement is a Piguet 71. Is ...

I think it's a rebranded F. Piguet caliber 71.

By: mkvc : June 7th, 2007-09:58

er... Breguet calls it a 502SD, the 240Q is a Patek movement

By: ei8htohms : June 8th, 2007-16:18

Hi cbo, The Breguet 502 is indeed based on the Piguet 71, but is now produced in-house by Breguet. When Lemania/Breguet took over production of the movement they modified the barrel and center minutes pinion to improve the regularity of the power flow and...

that sounds nice! A question please John:

By: lutz : June 11th, 2007-05:18

Hello John, reading you answer I wondered how You would compare the cal 502(FP 71 based) to the cal 591(Lemania 8815 based) in terms of service,mvmt design etc(improvements done by Breguet to the old 8810/Longines concept of Your in-depth review?), kind r...

I prefer the Cal. 591

Question about the movement Breguet 5140

I think it's a rebranded F. Piguet caliber 71.

er... Breguet calls it a 502SD, the 240Q is a Patek movement

that sounds nice! A question please John:

I prefer the Cal. 591

thanks John

nope, sorry