The Breitling U17356531L1P1 (Ref. U17356531L1P1) is a luxury mechanical wristwatch. On the secondary market, the U17356531L1P1 averages $13,800 across 1 active listing. When buying pre-owned, check condition grade, box and papers (typically a 10–20% premium), service history, and originality of dial and hands. Use the listings and price history on this page to benchmark fair market value.