You have 2 kind of complications doing this

The Perpetual Calendar (the most expensive of date display among the 3 types available): it recognizes the 30 or 31 but also the february 28 or 29.

The Annual Calendar created by Patek Philippe 20 years ago (20th anniversary this year with the launch of a new version of the 5396 reference): it recognizes the 30 and 31 and you have to set your watch for the Febuary/March switch. This one is much less expensive than the Perpetual Calendar and offers a very practical feature too.

You can have a look at the Patek catalogue in the "Complication" segment: 5146, 5205 or 5396 for the Annual Calendar only.

If you have more budget, I suggest you go for a 5960 (second hand, fantastic value for money and exceptional finishing and decoration, dial side or movement side) or the new 5905P.

You will find with these watches a great movement development and splendid dial and movement decoration.

Depending on your budget, have a close look at the movement finishing and decoration and look closely at the dial (markers, windows frame, overall refinement) or the case work to take your decision. Patek, in that field is a great value for money in terms of watchmaking.

As mentionned above, the second market is a very interesting choice to get a Perpetual Calendar for instance (3940, 5140).

Enjoy your search and take your time!

Cheers, Mark

This message has been edited by Mark in Paris on 2016-05-02 03:00:36

💰1730 Marketplace Listings for Patek Philippe›

Anyone aware of a watch that can differentiate months with 30 to 31 days ?

By: Watch_kha_wen : May 1st, 2016-16:12

Hi there Anyone aware of a watch that can differentiate months with 30 to 31 days ?

Yes, of course. It's called a Perpetual Calendar or an Annual Calendar.

By: vitalsigns : May 1st, 2016-16:24

The perpetual calendar also accounts for leap years. The annual calendar does not.

thanks a lot for the info

By: Watch_kha_wen : May 1st, 2016-16:48

then is anyone aware of a watch around 37/38 mm and not too thick with the perpetual calendar?

There are lots of models available with around those dimensions.

By: vitalsigns : May 1st, 2016-17:08

Most, if not all of the watch companies covered by a forum on this site make at least one perpetual calendar. It would be best to let us know your budget and case metal preferences (precious metal or steel? If precious metal, then gold vs. platinum? If go...

indeed..

By: Watch_kha_wen : May 1st, 2016-17:39

Ideally I would go for rose gold if not then steel. I don't really have a specific budget, it would really depend on the watch. I will defo not have enough savings for the 5140P for ex even if I love it. Top of the top would be a thin watch with a blue di...

JLC makes a Master Ultra Thin Perpetual in Rose Gold with an eggshell dial. It is gorgeous.

By: vitalsigns : May 1st, 2016-17:52

The JLC MUT Perpetual is 39 mm, so slightly larger than your desired range, but it is fairly thin on the wrist. Terrific value for what you get given other watch makers' offerings at JLC's end of the spectrum. That's the piece that jumps quickly to mind.

JLC MUT Perpetual, as suggested by John. 39 mm, and as its name suggests, thin and very elegant. But you have a second hand

By: amanico : May 1st, 2016-21:36

Master Perpetual, in platinum, with a blue dial. 37 mm. At a very good price for what it is. Best, Nicolas

Perpet

By: ZJ : May 1st, 2016-17:57

Could also, of course, buy a discontinued model (e.g., Patek 3940).

3940 is awesome but

By: Watch_kha_wen : May 2nd, 2016-03:12

it will be a bit too exp for me so far... I currently have a montblanc 39mm and it's a little big on my wrist (my wrist is 16 cm) the JLC seems great I will definitely have a try in the old bond street shop