{"product_id":"sinn-navigation-chronograph-903-h4-watch-903080-leather-strap-sn-035","title":"Sinn Navigation Chronograph 903 H4 Alligator D","description":"\u003cp\u003e\u003cstrong\u003eSinn Navigation Chronograph 903 H4 903.080 LEATHER\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Sinn Navigation Chronograph 903 H4 \u003cstrong\u003e903.080 LEATHER\u003c\/strong\u003e is a Swiss-made pilot chronograph designed for professional aviation use and collector appeal. Powered by the precise Lemania 1883 hand-wound movement, operating at 21,600 vibrations per hour, this luxury watch delivers exceptional accuracy and mechanical heritage. As a classic navigation chronograph, it integrates advanced functions inspired by cockpit instrumentation.\u003c\/p\u003e\u003cp\u003eThe Sinn Navigation Chronograph 903 H4 \u003cstrong\u003e903.080 LEATHER\u003c\/strong\u003e features a slide rule bezel with logarithmic scale for complex calculations such as fuel consumption, speed, and distance. Additional complications include a moon phase display, second time zone, hand date, and full chronograph functionality. The UV-resistant dial is equipped with luminous elements for readability, protected by sapphire crystal with anti-reflective coating. A transparent case back reveals the finely finished movement, while the leather strap enhances comfort.\u003c\/p\u003e\u003cp\u003eThis Swiss-made hand-wound pilot chronograph is ideal for aviation professionals and collectors seeking a highly technical luxury watch. Suitable for both specialist use and refined wear, it delivers precision and heritage. The Sinn Navigation Chronograph 903 H4 \u003cstrong\u003e903.080 LEATHER\u003c\/strong\u003e stands as an icon of functionality.\u003c\/p\u003e","brand":"Archive","offers":[{"title":"Default \/ Grey","offer_id":53718151889237,"sku":"SIN-035","price":2710.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/3996\/3477\/files\/sinn-navigation-chronograph-903-h4-alligator-d-903-080-leather-image-1.jpg?v=1777461173","url":"https:\/\/www.clarindon.co.uk\/products\/sinn-navigation-chronograph-903-h4-watch-903080-leather-strap-sn-035","provider":"Clarindon Jewellers","version":"1.0","type":"link"}