{"product_id":"2010-marathon-divers-automatic-gsar-41mm-6645-21-558-0133","title":"2010 Marathon Diver's Automatic GSAR 41mm 6645-21-558-0133","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eHere is a 2010 Marathon Diver's Automatic GSAR 41mm (Ref. 6645-21-558-0133), a legendary military-issue tool watch built to strict government specifications for search-and-rescue operations. This Government Search and Rescue (GSAR) reference represents the quintessential epitome of purpose-built tactical horology. \u003c\/span\u003e\u003cspan\u003eThe highly robust 41mm 316L stainless steel case introduces a chunky, uncompromising architecture built like a miniature vault. With a versatile case thickness of 13.5mm and a compact lug-to-lug length of 48mm, its clever ergonomics deliver an incredibly balanced, secure, and authoritative wrist presence. The entirely brushed case features deep, oversized bezel serrations designed for effortless grip with tactical gloves, while a heavy-duty signed screw-down crown ensures a professional-grade 300-metre (1000ft \/ 30 ATM) water resistance rating. A scratch-resistant sapphire crystal sits flush over a deeply brooding, matte black military dial. Designed for instantaneous readability under high-stress operational conditions, the layout features a classic 12\/24-hour military scale with a clean date window neatly positioned between 4 and 5 o'clock. The defining hallmark of the GSAR is its self-contained illumination system, which utilises specialised Tritium gas tubes on the hands and hour markers, along with a MaraGlo luminescent triangle at the 12 o'clock bezel position. These micro-gas tubes emit a continuous, reliable glow for decades without requiring any external light source to charge. On the reverse, the solid steel case back is deeply stamped with official military metadata and NATO Stock Numbers (NSN). Inside lies the premium, Swiss-made Sellita Cal. SW200 automatic movement, a highly regarded industry workhorse operating at a high-beat frequency of 28,800 vibrations per hour (4Hz). Utilising 26 jewels, this self-winding calibre delivers robust daily durability, hacking seconds, and quickset date functionality. It comes paired with a 20mm rubber strap and a signed buckle. The watch comes complete with its presentation box and booklet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb id=\"docs-internal-guid-cb276d81-7fff-3b34-2752-92f717d696f5\"\u003e\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Marathon","offers":[{"title":"Default Title","offer_id":57464873451900,"sku":"6645-21-558-0133","price":850.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/0771\/3366\/files\/1_0a8e7a1a-3da1-42f6-ad30-dff42585399b.jpg?v=1789663110","url":"https:\/\/kibblewatches.co.uk\/products\/2010-marathon-divers-automatic-gsar-41mm-6645-21-558-0133","provider":"KibbleWatches","version":"1.0","type":"link"}