Hello r/Watchexchange, ***For sale is this beautiful and super rare SQUALE 1521 NIROX known as "the RASTA" limited to 100 pieces or fewer inspired by BLANCPAIN*** SOLD OUT ONLINE This particular watch is in excellent condition and full kit, functions perfectly. Super light lug scratches on once , barely able to photograph. About 6 months left of warranty. The beauty of the Squale 1521 "Nitrox" editions lies in their balance of professional tool-watch grit and high-end vintage elegance. While most dive watches look like jewelry, these models look like specialized equipment from a bygone era of exploration. Immersioni Nitrox 65th Anniversary - Ltd Ed 65pcs Before we delve into the specifics of this exquisite timepiece, let us briefly explore the concept of Nitrox diving. Essentially, Nitrox diving involves using a gas mixture with a higher proportion of oxygen compared to regular air, which consists of approximately 21% oxygen and 71% nitrogen. In contrast, Nitrox mixtures typically contain 32% or 36% oxygen, enabling divers to extend their no-stop dive times and reduce surface intervals. The latest Gnomon-exclusive 1521 pays homage to a rare variant of the Blancpain Fifty Fathoms from the mid-1970s—the Bundeswehr Kampfschwimmer "ЗН Bund," a military-issued diver watch for German Navy Combat Divers. Also to commemorate Squale's 65th annivesary, this Squale 1521 Immersioni Nitrox is meticulously designed for professional use. The stainless steel case, finished with a full mirror polish, exudes a classic sixties aesthetic. With a 41mm diameter, 48mm lug to lug, and 12.5mm thickness, the watch offers a versatile fit for various wrist sizes while maintaining a bold presence. The crown, positioned at 4 o'clock, is polished and cleverly integrated into the case design, providing protection against accidental impacts. Limited to just 65 pieces, each watch features a unique serial number engraved on the screw-down case ***The "Functional" Beauty*** The aesthetic appeal comes from several unique design choices: The "Sterile" Bezel: Most dive watches have numbers all around the rim. The Nitrox editions often use a "sterile" matte black bezel with no markers except for a single luminous triangle at the top. This gives the watch a mysterious, undercover look that prioritizes focus and legibility. The Signature Case: The watch uses the 1521 case, famous for its "Von Buren" shape. Its most beautiful feature is the way the lugs curve sharply downward to hug the wrist, and the crown is tucked away at the 4 o'clock position so it doesn't dig into your hand. The Nitrox Symbol: The inclusion of the "Nitrox" logo or the specialized "No-Radiation" style icons at 6 o'clock adds a pop of color (usually yellow and green or orange). It signals that this isn't just a desk diver; it’s a nod to technical diving where oxygen mixtures are calculated for deep-sea survival. Mirror Polishing vs. Matte: Depending on the version, the beauty comes from the contrast between the high-mirror polish of the steel—which reflects light like a precious stone—and the flat, utilitarian matte of the dial and bezel. In short, it is beautiful because it feels like a "lost" military prototype. It carries the DNA of a $20,000 vintage Blancpain but maintains the rugged, independent spirit that Squale is known for today. Since this 1521 is extremely rare and in great condition the price of $1,249.00 is very fair in my opinion. ***Price:*** $1,249 including priority shipping anywhere in the US ***Shipping:*** Included USPS priority shipping anywhere in the US, insurance and other options are responsibility of buyer. Shipping from Central FL and watches are always packed with love and care. ***Payments accepted:*** Zelle is preferred. (PayPal FF, PayPal GS + 3.5%, Venmo, Apple Pay are reserved for forum members with enough registered transactions at my discretion) Please comment before sending a private message (PM). Happy to provide additional photos or a video call for serious buyers. Check my for profile for transaction history and other watches for sale. Thank you for your consideration, u/systemnew4959