The Patek Philippe Chronograph Annual Calendar 5905/1A (Steel & Olive Green Dial)
A new sporty combination for the annual chrono of Patek
The annual calendar chronograph is one of the most fascinating yet rarest combinations in the industry, as we’ve experienced in this in-depth article. And one brand in particular does it better than the rest of the bunch, and that is Patek Philippe. For a good reason, since the brand invented the annual calendar function back in 1996. Now, there’s a rather large collection of watches using this unusual combination, and specifically the 5905 is often regarded as the most attractive model. Today, Patek launches a new, surprisingly sporty version of this watch with a steel case, a steel bracelet and an olive green dial, with the new Chronograph Annual Calendar 5905/1A.
While on paper we’re certainly talking about just a new version of a watch that has been in production for some years now, this new iteration of the large Chronograph Annual Calendar, the reference 5905/1A, comes with some rather interesting attributes. Yes… steel case and bracelet, not something that common at Patek (at least not in the range of watches). The 5905 is a modern watch, with a 42mm diameter, which combines two of Patek’s finest complications; the annual calendar function (which they invented) and the chronograph.
Previously available in rose gold with a chocolate dial or in platinum with a blue or black dial, the 5905 is revamped this year in a rather surprising combination. And if the specifications and proportions are identical (42mm diameter and 14.13mm height), the case has been given a commoner material, stainless steel – which is somewhat the exception for Patek Philippe, even though we’ve seen more and more steel models recently. Entirely polished, with a convex bezel and rectangular pushers, it is a rather large watch with heft and presence. Modern and sleek, it is now combined with something entirely new for this range, a 3-link stainless steel bracelet with a folding clasp. This combination results in a look that is drastically different from the previous editions in precious metals.
As for the dial, the display remains identical. Central hours and minutes, no running seconds, a sub-dial at 6 o’clock that is used as a practical 60-minute counter for the chronograph, a central chronograph seconds. And of course, there are the 3 windows on top for the annual calendar function, positioned in a very European (so I’d say natural… sorry US readers) way, with weekday, date and month indications. Finally, a small round aperture in the sub-counter is used as a day-night indicator.
New to this model, but not to Patek – think about the final edition of the 5711 – the new Chronograph Annual Calendar 5905/1A comes with an attractive sunray-brushed olive green dial. All elements of the dial are white gold (hands and applied markers) or white for the numerals and tracks, resulting in a rather sleek and sporty look.
Powering this watch is the same in-house Calibre CH 28-520 QA 24H, a modern automatic chronograph with an annual calendar module on top. It relies on an integrated construction and the chronograph functions are actuated by a column wheel and a vertical clutch. It also features a flyback function. With its Patek Philippe Seal certification, the decoration is superb and, although a central rotor partially hides it, the view through the caseback is pleasant. The frequency is 4Hz and the power reserve is given for 45-55 hours.
The Patek Philippe Chronograph Annual Calendar 5905/1A stainless steel and olive green dial will be part of the permanent collection and priced at EUR 51,500. More details at patek.com.
Excellent write up on this new PP AC, this has to be my favorite PP in years, much classier than the Nautilus or the Aquanaut.
@SPQR – I must admit that I was never a huge fan of the gold or platinum models… but this full steel model with green dial is quite attractive and the larger case feels more appropriate with the steel case.