This is a lovely 50s (Not 100% sure) Wyler sub second watch.
Wyler movements were very durable due to their innovative "Incaflex" shock resistance system. Several of their watches were dropped from the Eiffel tower and other tall landmarks and continued running afterwards in the 1950s as proof of the system's effectiveness. This is actually quite well documented. Wylers also had a unique waterproofing method that did not use soft gaskets, thus the watches are less likely to lose water resistance due to gasket aging.
This particular watch has a 32.3mm case. It runs well and keeps good vintage time. It has been serviced within the last year (I'm sorry but I do not have paperwork). The case and crystal are in great condition. The dial is clean and has a very attractive creamy, textured patina. The movement is hand-wind mechanical.
I am asking $130 total (including PayPal fees and standard shipping to CONUS). The price is negotiable within reason.
Condition: aged gracefully
Movement: Hand wound mechanical Incaflex balance
Crystal: domed acrylic, very clean
Case: one piece steel case (front loaded)
Dimensions: 32.3mm diameter (35mm with crown), 37.5mm lug to lug, 9.2mm tall including crystal
Dial: white with creamy geographical textured patina
Strap: black leather 18mm