{"product_id":"model-pt4109sfc-usmc-carbon-dive","title":"Model PT4109SFC USMC Carbon Dive Professional Diving Watch","description":"\u003ch1\u003eModel PT4109SFC USMC Carbon Dive\u003c\/h1\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\n  The ProTek Model PT4109SFC USMC Carbon Dive is a purpose-built 45mm dive watch designed for those who demand reliable timekeeping in the most demanding environments. Built around a lightweight carbon composite case and a 316L stainless steel screw-in caseback, this watch pairs rugged construction with precision engineering. The 60-click unidirectional ratcheting bezel and 300-meter water resistance make it a true dive-ready instrument, while sapphire crystal with antireflective coating keeps the dial clear and readable under any lighting conditions.\n\u003c\/p\u003e\n\u003cp\u003e\n  Powering the watch is the dependable Japanese Miyota 2035 quartz 3-hand movement with a 4-year battery life, ensuring low-maintenance reliability for everyday wear and underwater use. The Swiss self-powered Pro-Glo T100 tritium illumination system delivers a continuous glow for 25 years without ever needing to be charged by an external light source - shining 100x brighter than conventional photoluminescent lume systems. Whether you're on a dive, a mission, or simply looking for a serious daily-wear timepiece, the PT4109SFC delivers performance you can depend on.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e45mm Carbon Composite Case:\u003c\/strong\u003e Lightweight yet tough construction built to handle underwater and rugged above-water use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e60-Click Unidirectional Ratcheting Dive Timing Bezel:\u003c\/strong\u003e Precise, tactile elapsed-time tracking - a must-have for divers monitoring bottom time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e300-Meter Water Resistance:\u003c\/strong\u003e Tested in both air and water, this watch meets serious dive requirements with confidence.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSapphire Crystal with Antireflective Coating:\u003c\/strong\u003e Scratch-resistant sapphire paired with AR coating for glare-free visibility in all conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwiss Pro-Glo T100 Tritium Illumination:\u003c\/strong\u003e Self-powered continuous glow for 25 years - no charging needed, and 100x brighter than standard lume systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMiyota 2035 Quartz Movement:\u003c\/strong\u003e Japanese-made 3-hand quartz movement with a 4-year battery life for dependable, low-maintenance timekeeping.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e316L Stainless Steel Screw-in Crown:\u003c\/strong\u003e Features multiple O-rings for a secure, water-tight seal under pressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e316L Stainless Steel Screw-in Embossed Signature Caseback:\u003c\/strong\u003e Durable, corrosion-resistant caseback with a signature embossed design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenuine Rubber Strap (22mm x 20mm):\u003c\/strong\u003e Reinforced with a steel tube molded into the strap for added spring pin strength and long-term durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight: 82g | Lug Width: 22mm:\u003c\/strong\u003e Substantial yet comfortable on the wrist for all-day and in-water wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003ePlease email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProTek Model PT4109SFC USMC Carbon Dive Watch\u003c\/li\u003e\n  \u003cli\u003eGenuine rubber strap with steel signature buckle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003e\n  The ProTek PT4109SFC is engineered for those who take their gear as seriously as their adventures - whether that's recreational diving, outdoor exploration, or demanding professional use. The Swiss T100 tritium illumination system alone sets this watch apart from the competition, offering guaranteed 25-year continuous glow that no lume-charged alternative can match. The carbon composite case keeps weight low without sacrificing the structural integrity needed for 300-meter depth ratings. Every detail - from the multi-O-ring crown to the reinforced rubber strap buckle - reflects a commitment to reliability under real-world conditions. ProTek has built a loyal following among military and dive communities for exactly this kind of no-compromise construction, and the PT4109SFC lives up to that reputation. It's a watch you can trust to perform when the stakes are high and conditions are tough.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView Product Specs\u003c\/strong\u003e\u003c\/summary\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eProTek\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003ePT4109SFC USMC Carbon Dive\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eCase Size\u003c\/th\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eCase Material\u003c\/th\u003e\n\u003ctd\u003eCarbon Composite\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eCaseback\u003c\/th\u003e\n\u003ctd\u003e316L Stainless Steel Screw-in Embossed Signature\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eCrown\u003c\/th\u003e\n\u003ctd\u003e316L Stainless Steel Screw-in with Multiple O-rings\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eCrystal\u003c\/th\u003e\n\u003ctd\u003eSapphire with Antireflective Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBezel\u003c\/th\u003e\n\u003ctd\u003e60-Click Unidirectional Ratcheting Dive Timing Bezel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMovement\u003c\/th\u003e\n\u003ctd\u003eJapanese Miyota 2035 Quartz 3-Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBattery Life\u003c\/th\u003e\n\u003ctd\u003e4 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eWater Resistance\u003c\/th\u003e\n\u003ctd\u003e300 Meters (tested in air and water)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eIllumination\u003c\/th\u003e\n\u003ctd\u003eSwiss Self-powered Pro-Glo T100 Tritium - 25-year continuous glow\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eStrap\u003c\/th\u003e\n\u003ctd\u003eGenuine Rubber, 22mm x 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBuckle\u003c\/th\u003e\n\u003ctd\u003eSteel Signature Buckle with molded steel tube for spring pins\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eLug Width\u003c\/th\u003e\n\u003ctd\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e82 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat makes the Pro-Glo T100 tritium illumination different from regular lume?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe Swiss Pro-Glo T100 tritium system is self-powered by a natural radioactive process, meaning it glows continuously for 25 years without ever needing to absorb light from an external source. In contrast, standard photoluminescent lume must be \"charged\" by exposure to light before it glows - and that glow fades quickly. The T100 system is also rated to shine 100x brighter than conventional lume, making it far superior for low-light and underwater visibility.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the PT4109SFC suitable for scuba diving?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes. With 300-meter water resistance, a screw-in crown with multiple O-rings, and a 60-click unidirectional ratcheting dive timing bezel, the PT4109SFC is built to meet the demands of recreational and professional diving. ProTek tests every watch in both air and water before it ships, giving you added confidence in its depth rating.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the PT4109SFC, PT4101SF, and PT4105SFC models?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eAll three models share the same USMC Carbon Dive platform and core specifications. Differences between the models typically relate to dial color, bezel design, or strap configuration. If you'd like help choosing the right variant for your needs, feel free to reach out to us at service@omahasportsandgames.com.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow often does the battery need to be replaced?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe Miyota 2035 quartz movement is rated for a 4-year battery life under normal use. When the time comes, any watchmaker or jeweler with standard quartz battery replacement experience can service it quickly and affordably.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I swap the rubber strap for a different band?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes. The watch features a standard 22mm lug width, which means it is compatible with any aftermarket 22mm watch strap or bracelet. The included rubber strap is reinforced with a steel tube for added durability, but swapping to NATO, leather, or metal bracelets is straightforward with standard spring bar tools.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"ProTek","offers":[{"title":"Default Title","offer_id":55884332564785,"sku":"PT4109SFC","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/protek-4100-USMC-PT4109SFC-carbon-gray-camo-01.png?v=1787603459","url":"https:\/\/omahasportsandgames.com\/products\/model-pt4109sfc-usmc-carbon-dive","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}