that even the biggies like Antiquorum can make mistakes
. Easy to find in their online database as it is the only Ref 6131 they've ever listed. Unfortunately, my own database has a hole between 6130 and 6132 with no recorded examples either.
Notice the Maltese Cross is printed, as well as whatever process they used, I'm thinking an inkjet, also printed right over several hour markers - look at the 6 o'clock marker. SWISS MADE was used briefly on timepieces following a change in export laws that occurred in 1972 when there was controversy between having Swiss parts vs being a Swiss watch. Definately not appropriate to the claimed year of manufacture of 1958. On the condition report, they describe the dial as 3 Good, Hands 01 Original. They do have a code for refinished dials so there was some negligence there!
OTOH, the case and movement numbers are appropriate for the 1950s, so its likely not a Franken - just a clumsy redial.