The Breitling Watch Source Forums

Never said it didn't, just that I didn't recognise it off the top of my head - I haven't yet memorised every reference number.

MER is French abbreviation of Mercredi (Wednesday). It's showing the month of August (Aout)

Serial number should be on the inside of the caseback which will allow us to date it accurately. My guess is early 1950s - 1952 or later, if its serial number is earlier then I guarantee that it is a frankenwatch.

88/28 is a correct reference automatic - another Richter error.

I have also found some reference examples that have the script Breitling on the back, but still not convinced about that because at least one of the reference pieces is from an unreliable source.

We really need to see inside of the caseback and the movement (should be a Felsa 693) to tell more.

Any other experts? Date, what language is my calender, also does this mean the rear numbers are from another non automatic watch?

You may have missed this in Roff's reply.

Thanks...how do I open the rear? I am afraid to break it...

Take it to a watchmaker and ask them to do it.