{"id":30034,"date":"2022-02-22T01:00:28","date_gmt":"2022-02-22T09:00:28","guid":{"rendered":"https:\/\/www.bobswatches.com\/rolex-blog\/?p=30034"},"modified":"2024-05-14T11:58:20","modified_gmt":"2024-05-14T18:58:20","slug":"patek-philippe-annual-calendar-5035-vs-5146","status":"publish","type":"post","link":"https:\/\/www.bobswatches.com\/rolex-blog\/patek-philippe\/patek-philippe-annual-calendar-5035-vs-5146.html","title":{"rendered":"Patek Philippe Annual Calendar 5035 vs. 5146"},"content":{"rendered":"

The annual calendar was designed by Patek Philippe<\/a> as a simpler version of the perpetual calendar. Unlike the perpetual calendar, which automatically displays the correct time and date in perpetuity (well, at least until 2100, when the Gregorian calendar skips the leap year), an annual calendar requires a readjustment once a year to accommodate February’s peculiar length.<\/p>\n

And since it’s almost March 1st, it is almost time to re-set your annual calendar if you have one. To help get you in the spirit, we\u2019ll be comparing two Patek Philippe annual calendar watches: the reference 5035 and the reference 5146. Among Patek’s plethora of watch complications, the annual calendar is one of the brand\u2019s most popular. <\/p>\n

However, it may come as a surprise to some that the annual calendar complication is relatively young, clocking in at less than 30 years old. In comparison, Thomas Mudge made the oldest known perpetual calendar in 1762! Patek Philippe launched the world\u2019s first annual calendar in 1996 with the ref. 5035, and this complication has been a mainstay of Patek\u2019s catalog ever since with dozens of references available. <\/p>\n

Let’s take a closer look at two Patek Philippe annual calendar wristwatches, the Reference 5035 vs. the Reference 5146.<\/p>\n

\"Patek
Patek Philippe Annual Calendar ref. 5146.<\/figcaption><\/figure>\n

What Is An Annual Calendar?<\/h2>\n

Calendar watches come in many forms. For instance, there are the simple date watches and the slightly more complex, day and date watches. Then there are complicated calendar watches that can indicate the day, date, month, and moon phase. And among those, there are perpetual calendar and annual calendar watches.<\/p>\n

A perpetual calendar watch automatically adjusts to correctly indicate the date in (almost) perpetuity because the complication accounts for leap years too. However, in 2100, the scheduled leap year is skipped, so even a perpetual calendar will require manual adjusting \u2013 but none of us will be alive then, so that is not our concern! <\/p>\n

On the other hand, an annual calendar needs a hands-on correction once a year. An annual calendar can differentiate between months with 30 days and 31 days, but not February, which has either 28 days (in a normal year) or 29 days (in a leap year). Therefore, every year, when February turns into March, the wearer has to manually adjust the calendar to continue on the correct course. Compared to a perpetual calendar, which can be difficult and frustrating to readjust once it has been dormant for a while, an annual calendar is easier to set.<\/p>\n

 <\/p>\n

Patek Philippe Annual Calendar Ref. 5035<\/h2>\n
\"Patek
The ref. 5035 was Patek Philippe’s first annual calendar watch.<\/figcaption><\/figure>\n

As previously mentioned, the first generation Patek Philippe Annual Calendar ref. 5035 made its debut in 1996. Available in yellow gold, rose gold, white gold, and platinum, the Patek 5035 sports a 37mm round case with a smooth stepped bezel. As expected, these dressier Patek watches come fitted with elegant leather straps.<\/p>\n

The dials (available in black, white, silver \u2013 or in rare cases, blue or salmon) of the Annual Calendar 5035 pack plenty of information. At the center are the luminescent leaf-shaped hands that sweep around the dial, pointing to the luminescent Roman numerals. Then there\u2019s the trio of sub-dials to indicate the month, 24-hour time, and day. Finally, there\u2019s a discreet date window placed at 6 o\u2019clock. As with most modern Patek Philippe watches, the back is fitted with sapphire crystal for a clear view of the movement inside. In this case, the engine is the automatic Caliber 315\/198, which offers users a power reserve of roughly 40 \u2013 45 hours.<\/p>\n

As with most modern Patek Philippe watches, the back is fitted with sapphire crystal for a clear view of the\u00a0 movement inside. In this case, the engine is the\u00a0automatic Caliber 315\/198, which offers users a power reserve of roughly 40 – 45 hours.<\/p>\n

 <\/p>\n

Patek Philippe Annual Calendar Ref. 5146<\/h2>\n
\"Patek
The ref. 5146 is the second (and current) generation of Patek Philippe annual calendar watches.<\/figcaption><\/figure>\n

In 2005, Patek replaced the ref. 5035 with the Annual Calendar ref. 5146. With the second generation (and current) Annual Calendar, Patek brought about a host of changes.<\/p>\n

First, the case size grew to 39mm \u2013 more fitting to the market demand for larger men\u2019s watches. Yet again, the 5146 is available in yellow gold, white gold, rose gold, and platinum. However, along with leather strap options, Patek now also offers all three gold editions with a full gold link bracelet.<\/p>\n

In addition to design changes, the Annual Calendar ref. 5146 also offers even more displays on the dial. Along with the time, date, day, and month, the current Patek annual calendar model also has a moonphase display (forgoing the 24-hour sub-dial) and a power reserve indicator. The lume-filled Roman numerals of the older model were replaced with a mix of Arabic and faceted indexes, accompanied by small lume plots on the outer railroad minute track. Conversely, the platinum version only has faceted indices and has no numerals at all for its hour markers.<\/p>\n

In terms of movements, the earlier Annual Calendar ref. 5146 watches ran on Caliber 315\/299 operating at 21,600 beats per hour. This was later replaced with the current Caliber 324 S IRM QA LU, which operates at 28,800 beats per hour. The 5146 watches also come with a sapphire caseback and those with the updated movement offer users a power reserve of approximately 45 hours.<\/p>\n

\"Patek
The Caliber 324 S IRM QA LU movement from inside a ref. 5146 Patek Philippe annual calendar watch.<\/figcaption><\/figure>\n

March 1 is When To Adjust Your Annual Calendar Watch<\/h2>\n

Regardless of the particular Patek Philippe Annual Calendar reference, these watches represent a significant milestone in the brand’s long and storied history. It is not often that we see completely new inventions in modern horology. These complex fine timepieces by Patek clearly illustrate that you\u2019re never too old to innovate.<\/p>\n

If you have an annual calendar watch, whether a Patek Philippe Annual Calendar, a Rolex Sky-Dweller, an IWC Portugieser, or any other model, don\u2019t forget to adjust it on March 1. <\/p>\n","protected":false},"excerpt":{"rendered":"

The annual calendar was designed by Patek Philippe as a simpler version of the perpetual calendar. Unlike the perpetual calendar, […]<\/p>\n","protected":false},"author":19,"featured_media":30058,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ep_exclude_from_search":false,"footnotes":""},"categories":[2365],"tags":[],"ppma_author":[2293],"acf":[],"yoast_head":"\nPatek Philippe Annual Calendar 5035 vs. 5146 - Bob's Watches<\/title>\n<meta name=\"description\" content=\"The annual calendar complication is one of Patek Philippe's most popular. 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