{"product_id":"doxa-823-50-351-21","title":"Doxa Sub 300 Ti5 Professional 823.50.351.21","description":"\u003ch2\u003eA dive icon returns in titanium\u003c\/h2\u003e\n\u003cp\u003eIn 1967, DOXA launched the revolutionary SUB concept, considered to be the first truly purpose-designed diver’s watch accessible to a broader public. The radical innovations it introduced at the time soon made it the benchmark for professionals, too. Water-resistant to 30 bar, roughly equivalent to a depth of 300 meters, it was the first to feature a unidirectional bezel with a dual scale for depth and dive time to calculate a safe ascent without decompression stops. Most radical of all: its high-contrast dial which greatly improved readability underwater.\u003c\/p\u003e\n\u003cp\u003eThe SUB 300 Ti5 brings Grade 5 titanium back to DOXA’s permanent collection, combining the iconic SUB 300 architecture with a lighter, stronger and highly corrosion-resistant construction. Measuring 42.50 × 45.00 mm with a thickness of 13.40 mm, the case, screw-down crown and screw-in caseback are crafted from Grade 5 titanium, offering exceptional strength-to-weight ratio and wearing comfort. Water-resistant to 300 meters (984 feet), the watch retains DOXA’s patented unidirectional rotating bezel with its dual depth-and-dive-time scale, supporting divers within established no-decompression limits. Beneath the domed, anti-reflective “glass box” sapphire crystal, all dive-related indications are coated with Super-LumiNova®, while the signature oversized DOXA orange minute hand provides immediate readability.\u003c\/p\u003e\n\u003cp\u003eThe SUB 300 Ti5 is powered by a COSC-certified Swiss automatic movement operating at 28,800 vibrations per hour (4 Hz), with approximately 38 hours of power reserve.\u003cbr\u003eThis watch is fitted with DOXA's woven-texture Dive Flex rubber strap, finished on a titanium pin buckle. \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMovement: Swiss mechanical automatic, self-winding, COSC certified Chronometer\u003c\/li\u003e\n\u003cli\u003eCase: 42.5mm Grade 5 titanium (13.4mm thick)\u003c\/li\u003e\n\u003cli\u003eFeatures: Sapphire crystal box, unidirectional rotating bezel\u003c\/li\u003e\n\u003cli\u003ePower Reserve: 38 hours\u003c\/li\u003e\n\u003cli\u003eFrequency: 28,800 vph (4.0 Hz)\u003c\/li\u003e\n\u003cli\u003eFunctions: Hours, minutes, seconds and date\u003c\/li\u003e\n\u003cli\u003eCrown: Screw-down\u003c\/li\u003e\n\u003cli\u003eCase Back: Grade 5 titanium, screw down\u003c\/li\u003e\n\u003cli\u003eWater Resistance: 30 ATM \/ 300 meters \/ 984 feet\u003c\/li\u003e\n\u003cli\u003eStrap: Rubber Dive flex strap, Grade 5 titanium pin buckle\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Doxa","offers":[{"title":"Default Title","offer_id":55588737515892,"sku":"823.50.351.21","price":3190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2930\/0774\/files\/DOXA_SUB_300_Ti5_823.50.351.21.jpg?v=1789131575","url":"https:\/\/topperjewelers.com\/products\/doxa-823-50-351-21","provider":"Topper Fine Jewelers","version":"1.0","type":"link"}