{"product_id":"g-shock-gravitymaster-gr-b300-1a-tough-solar-bluetooth-watch","title":"G-Shock Gravitymaster GR-B300-1A Tough Solar Bluetooth Watch","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eG-Shock Gravitymaster GR-B300-1A\u003c\/span\u003e\u003c\/strong\u003e is a mission-ready \u003cstrong\u003epilot's watch\u003c\/strong\u003e built on Casio's \u003cstrong\u003eCarbon Core Guard\u003c\/strong\u003e structure, fusing aviation-inspired styling with the shock-resistance, rigidity, and corrosion-resistance that define the G-Shock line. Finished in \u003cstrong\u003eblack\u003c\/strong\u003e with a matching \u003cstrong\u003eresin\u003c\/strong\u003e case and band, the case measures \u003cstrong\u003e59 x 54.7 x 15.7 mm\u003c\/strong\u003e, weighs just \u003cstrong\u003e71 grams\u003c\/strong\u003e, and fits wrists from \u003cstrong\u003e145 to 215 mm\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003ePower comes from Casio's \u003cstrong\u003eTough Solar\u003c\/strong\u003e technology, keeping the movement charged from any light source for reliable, maintenance-free operation. \u003cstrong\u003eBluetooth\u003c\/strong\u003e smartphone link pairs with the G-Shock app for automatic time correction, world time adjustment across multiple time zones, and a \u003cstrong\u003eFlight Log\u003c\/strong\u003e function that records time and position data. The watch runs on module \u003cstrong\u003e5719\u003c\/strong\u003e and includes \u003cstrong\u003edual time\u003c\/strong\u003e, a \u003cstrong\u003estopwatch\u003c\/strong\u003e, \u003cstrong\u003ecountdown timer\u003c\/strong\u003e, \u003cstrong\u003edaily alarm\u003c\/strong\u003e, and a full-auto \u003cstrong\u003eLED light\u003c\/strong\u003e with Super Illuminator for cockpit-ready legibility.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eRated for \u003cstrong\u003e200-meter water resistance\u003c\/strong\u003e (20 bar) and engineered to G-Shock \u003cstrong\u003eshock-resistant\u003c\/strong\u003e standards, the GR-B300-1A pairs bold analog hands and indices with a digital sub-display for at-a-glance reading in any conditions. Whether you're logging flight time, working a long shift, or just need a rugged everyday tool watch, the Gravitymaster GR-B300-1A delivers G-Shock toughness with serious pilot-watch credentials.\u003c\/span\u003e\u003c\/p\u003e","brand":"G-Shock","offers":[{"title":"Default Title","offer_id":55026992939330,"sku":"168405","price":207.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_b01c20b7-60ee-4a71-9631-c46251ff005b.png?v=1784672646","url":"https:\/\/centerfiresystems.com\/products\/g-shock-gravitymaster-gr-b300-1a-tough-solar-bluetooth-watch","provider":"Centerfire Systems","version":"1.0","type":"link"}