{"product_id":"sinn-navigation-chronograph-903-0423-pl-gl-24h","title":"Sinn Navigation Chronograph 903.0423 PL.GL.24h","description":"\u003c!-- VERSION 2: --\u003e\n\u003cstyle\u003e\n.product-details { font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif; line-height: 1.6; color: #333; }\n.product-description { font-size: 1rem; line-height: 1.8; color: #333; margin-bottom: 2rem; padding: 1rem; background-color: #f9f9f9; border-left: 3px solid #333; }\n.product-details h2 { font-size: 1.5rem; font-weight: 600; margin-top: 2rem; margin-bottom: 1rem; border-bottom: 1px solid #e0e0e0; padding-bottom: 0.5rem; }\n.product-details h2:first-of-type { margin-top: 0; }\n.spec-table { width: 100%; margin-bottom: 1.5rem; }\n.spec-row { display: flex; padding: 0.75rem 0; border-bottom: 1px solid #f0f0f0; }\n.spec-row:last-child { border-bottom: none; }\n.spec-label { flex: 0 0 180px; font-weight: 500; color: #666; }\n.spec-value { flex: 1; color: #333; }\n.condition-text { margin: 0.5rem 0; line-height: 1.8; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"product-details\"\u003e\n    \u003c!-- DESCRIPTION PARAGRAPH --\u003e\n    \u003cdiv class=\"product-description\" data-field=\"additionallast\"\u003e\n        \u003cp\u003eA rare vintage Sinn navigation chronograph based on the classic Navitimer-style layout. This reference uses the manual-wind Lemania 1877 chronograph movement, configured with a distinctive 24-hour time display, allowing clear AM\/PM reading on a single daily rotation of the hour hand. The watch features Sinn’s signature aviation slide-rule bezel and a fully functional chronograph with sub-dials for elapsed timing. The Lemania 1877 is a respected Swiss hand-wound movement known for its robustness, serviceability, and traditional chronograph architecture. This 903 variant (“PL.GL.24h”) represents one of the more specialized executions of the 903 line, combining aviation navigation functionality with the uncommon 24-hour dial format, making it particularly sought after among Sinn and Lemania collectors.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- SPECIFICATIONS SECTION --\u003e\n    \u003ch2\u003eSpecifications\u003c\/h2\u003e\n    \u003cdiv class=\"spec-table\"\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"sku\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSKU\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e06182026145952\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eItem\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eWristwatch\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"brand\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSinn\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"model\"\u003e\n\u003cdiv class=\"spec-label\"\u003eModel\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNavigation Chronograph\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"reference\"\u003e\n\u003cdiv class=\"spec-label\"\u003eReference\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e903.0423 PL.GL.24h\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"productionyear\"\u003e\n\u003cdiv class=\"spec-label\"\u003eYear\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1999\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"dialcolor\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDial Color\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eBlack\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"casematerial\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCase Material\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eGold Plated\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"movement\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMovement\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMechanical\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"caliber\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCaliber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eLemania 1877 24HR\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"country\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSwiss\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"gender\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGender\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMen's\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"jewels\"\u003e\n\u003cdiv class=\"spec-label\"\u003eJewels\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \u003cdiv class=\"spec-row\" data-field=\"bandmaterial\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBand Material\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eLeather\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"department\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDepartment\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMen\u003c\/div\u003e\n\u003c\/div\u003e\n        \n    \u003c\/div\u003e\n\n    \u003c!-- CONDITION SECTION --\u003e\n    \u003ch2\u003eCondition\u003c\/h2\u003e\n    \u003cdiv class=\"spec-table\"\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"conditionoverall\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall Condition\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eFair, overall condition\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"casecondition\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCase\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eShows hairline scratches. Has patina.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"crown\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCrown\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eShows desk marks.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"function\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFunction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRunning and keeping time\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \u003cdiv class=\"spec-row\" data-field=\"timing\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTiming Data\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e+8 Seconds\/day, 280 Amp, 0.2 BE\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"complications\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComplications\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e Chronograph, Stop Watch and Tachymeter.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n    \u003c\/div\u003e\n\n    \u003c!-- MEASUREMENTS SECTION --\u003e\n    \u003ch2\u003eMeasurements\u003c\/h2\u003e\n    \u003cdiv class=\"spec-table\"\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"diameter\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDiameter\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e41\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"thickness\"\u003e\n\u003cdiv class=\"spec-label\"\u003eThickness\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e14\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"lugwidth\"\u003e\n\u003cdiv class=\"spec-label\"\u003eLug Width\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e22\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"lugtolug\"\u003e\n\u003cdiv class=\"spec-label\"\u003eLug to Lug\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e48\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n    \u003c\/div\u003e\n\n    \u003c!-- ABOUT THE BRAND SECTION --\u003e\n    \n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener(\"DOMContentLoaded\",function(){document.querySelectorAll('.product-details h2').forEach(function(h){var n=h.nextElementSibling;if(n\u0026\u0026n.classList.contains('spec-table')\u0026\u0026n.querySelectorAll('.spec-row').length===0){h.style.display='none';n.style.display='none';}});});\n\u003c\/script\u003e","brand":"Sinn","offers":[{"title":"Default Title","offer_id":54038111027566,"sku":"06182026145952","price":5000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0945\/3128\/9454\/files\/1781812827295_jyca31_CONS_20134_20-_203_20of_206.jpg?v=1781992532","url":"https:\/\/wichitawatchworks.com\/products\/sinn-navigation-chronograph-903-0423-pl-gl-24h","provider":"Watch Works","version":"1.0","type":"link"}