hello nice find!

Its the real thing, I also have meny of these. note the nice fluted pushers, its a Lam. 5100 movment, One of my faves. I just finished one in a old Omega. Any way, early 1980s and because its only a day not D.D. It could also be a slower beat than a 28,800. Start the timer and or just check the second hand against a 7750 or other 5100 you may have and see if it beets just a bit short of 4 beats per second You can it. Please let me know. Meny will say that all 5100s are 28,800 beats pre, even the books say it. Buy I can say 100% not true I own 2 5100s that are slow beat and have serviced one. Nobody I know has ever seen one But I bet I will now get the real story after finding this incredible site!
she is a nice watch. You can get a G-S thick mineral Crystal for it at a suppy house for under $5.00 USA size 1.5 TMG 36.0 will go in nice and tight and still test good for water.
enjoy, and if its your 1st 5100 please keep us posted as how much you like it and how easy it is see the elapesed time .
Also its the only chrono movment that can take 7Gs and still time well!

Its automatic as I know you know. But if you are not real active wind it a little every day and it will keep better time.
Where did you find it? any history on it?
Peter
: now i know this sucker is beaten pretty badly,
: so i need no comments about it's condition,
: lol,:) but i would like any comments on info
: such as production date, real/fake/not
: sure,etc........

: front....
:

: back....
:

: okay fire away, i'm ready.:)

: j.h.