1957 Banker - white gold plate with case and movement both marked "L7". Crystal appears original and is thick and domed in the center end to end. Case, crystal, face and hands literally spotless. Mounted on a nice ostrich leather band. Accurate runner. Style-wise this is one of the favorites in my collection. I am guessing this is either a Banker "A" or "B". Referenced ad is dated 1959.
Agree Banker it is !
There are two variants, A and B, in the pricelists and an ad showing A as the yellow gold. I am tentative with B as the white gold version.
In reply to There are two variants, A and by Andersok
Great ad, I missed that one. If the "A" variant is confirmed as yellow, then by process of elimination; Banker "B" it is.
Interesting number font, never seen it on any other model.
Banker, tentative B variant.
I'll go along with Banker B, nice looking watch Bob.