Launched a few months ago, the new Panerai Radiomir Black Seal 8 Days PAM 609 is the latest addition to the 'Black Seal' family within the Radiomir collection. The first modern Panerai Radiomir watch honoring ref. 3646 from the late 1930s was launched in 2004 as the Panerai 'Radiomir Black Seal' PAM 183 with a 45mm —the original Radiomir watches had a case measuring 47mm in diameter— stainless steel cushion-shaped case. Since then, many iterations of the 'Radiomir Black Seal' have followed with dial changes —i.e. today, the PAM 183 features the 'Black Seal' writing at 12 o'clock instead of at 6 o'clock as it did when it was launched in 2004—, release of new models with in-house calibres that include date functions, power reserve indicators and most recently powered by the manual wound Panerai in-house calibre P.5000 with an outstanding 8-day power reserve. Interestingly enough, while working on our hands-on review, the PAM 609 reviewed here, ended up delivering an impressive total power reserve of 9 days, 3 hours and 10 minutes.