FSOT is my Favre-Leuba Deep Blue Reference 59603 from 1963 with a very early serial. This is the first execution, meaning it has an unsigned crown, long applied markers at 12, 9, 6, 3 and the arched Favre-Leuba text along with original signed bracelet. I don't have service history but a recent timing over 24 hours yielded a very respectable loss of 26 seconds. Aside from some deterioration on the dial (radium burn) it's in amazing condition.

Dial: Beautiful grey sunburst 1st execution dial with curved script (note “Ra” for radium) and long applied markers at 12/9/6/3. The hands are in incredible condition.
Case: All stainless steel 39 mm w/o crown. Signed screw down case back clearly shows engravings.
Crystal: Original plexi is in amazing condition with no scratches
Crown: Correct unsigned crown for this version (correct for the earliest first execution)
Bezel: Unidirectional w/slightly faded aluminum insert (correct for the earliest first execution)
Movement: Automatic in-house Favre-Leuba Cal 1152 w/o service history

Price: $3300 or best offer (PayPal) shipped in the USA. Worldwide shipping can be arranged at an extra cost.
Trades: Vintage Doxa 300T

References...A couple successful transactions on OF, many on WUS, eBay, and IG. Please PM with questions.

Thank you,
Anthony