For Sale is an excellent example of the Panerai Submersible Acciaio E-Boutique edition, model reference PAM00731.
Limited to 100 units, this model was released in 2017 as an e-boutique edition and features a 44mm polished steel case, brushed diving bezel and a novel matte blue dial with small-seconds and a date indicator.
It's powered by the OP XXX, an automatic movement with a power reserve of 50 hours.
Complete with original box & papers, this example is in truly excellent & unpolished condition, with very light signs of wear throughout. A video condition review is available upon request.