Up for sale is a stunning, high-performance San Martin automatic dive watch. This hybrid model expertly bridges classic, ultra-comfortable SKX case dimensions with the heavy-duty dial architecture of a professional Marine Master 300. This specific execution features an all-metal, circularly brushed stainless steel bezel insert and a highly articulate, premium solid stainless steel "Beads of Rice" bracelet. San Martin is world-renowned among enthusiasts for producing custom tool watches with tolerances that rival entry-level luxury brands, featuring crisp case facets and perfect dial alignment.
Case & Bezel: Very Good pre-owned condition. The 316L stainless steel case retains its sharp factory lines, showing immaculate industrial brushing on the lug surfaces and mirror-polished flanks. The raw brushed steel bezel insert is completely pristine, and the unidirectional 120-click rotation is tight, smooth, and lines up dead-on. The flat sapphire crystal is flawless.
Bracelet & Sizing: Fitted with San Martin's premium solid-link stainless steel Beads of Rice bracelet, which contours incredibly fluidly to the wrist. It shows only minor, negligible desk-diving marks on the brushed/polished links and the heavy-duty milled deployment clasp. The bracelet is currently sized to fit approximately a 6.5-inch wrist; please note that no extra links are included. It also ships with a loose selection of nice quality aftermarket NATO straps for alternative styling.
Performance: Powered by a robust mechanical automatic movement, the watch is running exceptionally strong, winds smoothly through the screw-down crown, and keeps excellent time well within standard factory parameters.
Inclusions & Extras: Watch on premium steel Beads of Rice bracelet and extra unmounted NATO strap selection only (no factory box or papers).
Case Dimensions: ~42mm case diameter, a highly wearable ~46mm lug-to-lug, and roughly 13.5mm thickness. Modeled after iconic SKX dimensions, this case geometry allows a heavy-duty diver to sit surprisingly flat, compact, and balanced on a 6.5" wrist footprint.
Lug Width: 22mm.
Movement: Reliable automatic caliber (featuring 24 jewels, 21,600 vph, hacking seconds, a quickset date complication at 3 o'clock, and a ~41-hour power reserve).
Crystal: Premium flat sapphire crystal treated with an internal anti-reflective (AR) coating for distortion-free legibility.
Bezel: Unidirectional 120-click professional timing bezel equipped with a rugged, circularly brushed custom stainless steel insert and a luminescent pip at 12 o'clock.
Dial Architecture: Deep matte black dial detailed with deeply applied, polished bordered indices (combining round, rectangular, and double-baton shapes), a framed date window at 3 o'clock, professional Marine Master style faceted hands, and San Martin’s signature applied 3D hexagon logo.
Crown: Heavy-duty screw-down crown positioned ergonomically at 4 o'clock to prevent the case from digging into the back of your hand.
Water Resistance: 200 meters (20 ATM), establishing a heavy-duty, completely sealed environment built for swimming and diving.
Lume: High-potency premium Swiss Super-LumiNova application across the hands, indices, and bezel pip for intense low-light visibility.