Wow, that is interesting...157xxx is almost on the verge of 'Chronomatic' dial territory :-)
Maybe that one was a 'distressed' Chronomatic dial that was swapped for a G/G :-)

I almost considered selling my G/B last week as I hardly wore it, then this discussion came along and its not been off my wrist since- so, I've changed my mind!
Thanks OTD...
AndyO...

: At the moment, I have six 1133G Monacos on my list, with serial
: numbers as follows: 157xxx = G/G 158xxx = G/G 159xxx = G/B
: 1592xx = G/B 1594xx = G/G 161xxx = G/G So, yes, I believe that
: the Grey / Grey came first, but -- in terms of the case serial
: numbers -- we do not seem to have a clear cut-over from G/G to
: G/B. There may have been some G/G dials in inventory, even as
: the current production had switched to G/B; there may be other
: explanations; etc.

: Jeff

: ++++++++++++++++++++++++++++++++++++++++++++++++++++

: