The reference 5004 is most probably one of the timepieces that represents the epitome of what Patek Philippe stands for: stealth sophistication.

Reference 5004 was Patek Philippe’s first serially produced perpetual calendar split seconds chronograph. Together with the reference 5070 and 5970, it is the last Patek Philippe model to employ the “Nouvelle Lemania” based calibre.

The aesthetics of the watch are based on the reference 3970 (itself based on the iconic ref. 2499), with subtle differences: the dial features large Arabic numerals instead of baton markers most often found on the ref. 3970; the case is thicker and 0.8 mm larger as a result of the split-seconds complication, granting it a more substantial wrist presence, while still remaining very elegant and understated.

The intricacy of the split seconds module, compounded with the already complex perpetual calendar chronograph and the enormously high finishing standard of the company, commanded an incredibly slow production rate.

The present example is preserved in superb condition with strong stepped lugs, deep hallmarks and coming with its full set of accessories including the additional numbered solid caseback.