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WatchBrothersLondon · 16 April 2020, 06:12 AM

Looking to learn more about the Patek Philippe 3940 Perpetual Calendar...

I've put together a guide covering the 3940 production, with a deep dive into the different series, the key characteristics/variants plus some unique editions worth knowing about.

Thank you to everyone who contributed, information or photos, it couldn't have come together without you. Hugely appreciated!

Hope you find it useful! all the best, Ben

https://www.watchbrotherslondon.com/...etual-calendar

sensui · 16 April 2020, 06:36 AM

Just awesome. Thank you.

WatchBrothersLondon · 16 April 2020, 06:55 AM

Quote:

Originally Posted by sensui

Just awesome. Thank you.

My pleasure thank you for taking a read. All the best, Ben

nyc2la · 16 April 2020, 07:10 AM

Again, great effort! And this should be a sticky!

ts3 · 16 April 2020, 07:31 AM

Great stuff - thank you!

Let us know if you find out any info on non-sigma dials. As far as I understand Patek stopped using sigma dials on most refs between the late 1990s and 2000 whereas the 3940s seem to have come w sigma dials well into the mid-2000s. Any info on that subject would be appreciated.

WatchBrothersLondon · 16 April 2020, 07:51 AM

Quote:

Originally Posted by ts3

Great stuff - thank you!

Let us know if you find out any info on non-sigma dials. As far as I understand Patek stopped using sigma dials on most refs between the late 1990s and 2000 whereas the 3940s seem to have come w sigma dials well into the mid-2000s. Any info on that subject would be appreciated.

I’m going to spend some time looking into these dials, thank you for flagging. I look forward to updating on this. All the best, Ben

Sent from my iPhone using Tapatalk

kneedeep · 16 April 2020, 12:22 PM

The definitive reference, awesome!

subtona · 16 April 2020, 12:33 PM

A favorite reference from Patek.
Well worth consideration by anyone who appreciates Patek and their history.

I have a 5940, same complication and movement with a different case.
Super thin and beautifully balanced, 3940 & 5940: truly a magnificent references.

Thank you for putting this together.

Ps, imho the 3940 is probably one of the best values that can be found in Patek.

qrc36 · 16 April 2020, 06:12 PM

3940 is so pretty - actually it was reading about the 3940 that I wanted to buy the 5140 (discontinued but still available new at AD).

Obviously if the 3940 was still available now (new at AD) then I'd go and buy one right away!

nyc2la · 17 April 2020, 04:24 AM

I’ve seen some 3940s that have the complication “actuators” protruding ever so slightly from the case. Others are perfectly flush with the case.

Does anyone know with certainty if this how these 3940s were sent from the factory, or is this protruding due to polishing of the case?

Thanks.

KBM · 17 April 2020, 04:30 AM

Extremely useful. Many thanks, OP!

WatchBrothersLondon · 17 April 2020, 04:37 AM

Many thanks everyone for your kind words, really appreciated and I’m glad you’re finding it useful. There are a still a few nuances I’d like to add and will keep the article updated accordingly. All the best, Ben

Sent from my iPhone using Tapatalk

Nachum · 10 June 2021, 12:58 AM

Realize this thread's been stale for over a year, but I can't help but "bump" it, both to thank the OP and to highlight this write-up for others interested in the 3940.

erics · 10 June 2021, 02:05 AM

Great stuff, i think i can contribute: i was at the PP diner for the 175th anniversary in London and did put my name down for the salmon dial 3940g (which i did not get). They made 15 if i remember correctly. In fact they made 15 of most of the itterations offered for sale that evening.

edhahn44 · 10 June 2021, 04:53 AM

It’s just an awesome watch. Grab one before they are gone...

Sent from my iPhone using Tapatalk

erics · 14 June 2021, 11:40 PM

oh and one more thing, there are a couple of blue face versions knocking about as well. A good friend of mine just sold hers brand new sealed that she had been keeping for years. I posted on the subject a while back.

FrenchBigCrown · 24 September 2021, 05:58 AM

Quote:

Originally Posted by WatchBrothersLondon

Looking to learn more about the Patek Philippe 3940 Perpetual Calendar...

I've put together a guide covering the 3940 production, with a deep dive into the different series, the key characteristics/variants plus some unique editions worth knowing about.

Thank you to everyone who contributed, information or photos, it couldn't have come together without you. Hugely appreciated!

Hope you find it useful! all the best, Ben

https://www.watchbrotherslondon.com/...etual-calendar

Good work!

Thank you.

Mine (old photo - July last year!!!

)

RickInCA · 24 September 2021, 06:32 AM

Nice one

Nicof · 24 September 2021, 02:10 PM

Quote:

Originally Posted by erics

oh and one more thing, there are a couple of blue face versions knocking about as well. A good friend of mine just sold hers brand new sealed that she had been keeping for years. I posted on the subject a while back.

White gold salmon dial, platinum blue dial, rose gold brown dial and yellow gold black dial.

Sent from my iPhone using Tapatalk

uniqueMR · 25 September 2021, 07:45 AM

The BEST ...

watchesinheaven · 29 September 2021, 02:16 AM

This is my grail watch

16 April 2020, 06:12 AM	#1
WatchBrothersLondon 2024 Pledge Member Join Date: Mar 2019 Real Name: Ben Location: London, UK Posts: 615	Patek Philippe Ref. 3940 Perpetual Calendar Information Guide Looking to learn more about the Patek Philippe 3940 Perpetual Calendar... I've put together a guide covering the 3940 production, with a deep dive into the different series, the key characteristics/variants plus some unique editions worth knowing about. Thank you to everyone who contributed, information or photos, it couldn't have come together without you. Hugely appreciated! Hope you find it useful! all the best, Ben https://www.watchbrotherslondon.com/...etual-calendar

16 April 2020, 07:10 AM	#4
nyc2la "TRF" Member Join Date: Mar 2014 Real Name: Stephen Location: Beach Watch: 16660 Posts: 9,413	Again, great effort! And this should be a sticky! __________________ "Nothing great was ever achieved without enthusiasm." --- RWE

16 April 2020, 12:22 PM	#7
kneedeep "TRF" Member Join Date: May 2014 Location: Not 2 far from u Posts: 3,457	The definitive reference, awesome! __________________ Official Member "WIS-CON" Las Vegas International GTG 2017 Official Member "WIS-CON" Las Vegas International GTG 2018

16 April 2020, 12:33 PM	#8
subtona "TRF" Member Join Date: Jan 2011 Real Name: gus Location: East Coast Watch: APK & sometimes Y Posts: 26,546	A favorite reference from Patek. Well worth consideration by anyone who appreciates Patek and their history. I have a 5940, same complication and movement with a different case. Super thin and beautifully balanced, 3940 & 5940: truly a magnificent references. Thank you for putting this together. Ps, imho the 3940 is probably one of the best values that can be found in Patek. __________________

17 April 2020, 04:24 AM	#10
nyc2la "TRF" Member Join Date: Mar 2014 Real Name: Stephen Location: Beach Watch: 16660 Posts: 9,413	I’ve seen some 3940s that have the complication “actuators” protruding ever so slightly from the case. Others are perfectly flush with the case. Does anyone know with certainty if this how these 3940s were sent from the factory, or is this protruding due to polishing of the case? Thanks. __________________ "Nothing great was ever achieved without enthusiasm." --- RWE

16 April 2020, 06:36 AM	#2
sensui 2024 Pledge Member Join Date: Jan 2016 Location: San Diego, CA Posts: 12,437	Just awesome. Thank you.

16 April 2020, 07:31 AM	#5
ts3 "TRF" Member Join Date: Nov 2018 Location: Europe Posts: 3,506	Great stuff - thank you! Let us know if you find out any info on non-sigma dials. As far as I understand Patek stopped using sigma dials on most refs between the late 1990s and 2000 whereas the 3940s seem to have come w sigma dials well into the mid-2000s. Any info on that subject would be appreciated.

16 April 2020, 06:12 PM	#9
qrc36 "TRF" Member Join Date: Nov 2016 Location: HKG Posts: 275	3940 is so pretty - actually it was reading about the 3940 that I wanted to buy the 5140 (discontinued but still available new at AD). Obviously if the 3940 was still available now (new at AD) then I'd go and buy one right away!

17 April 2020, 04:30 AM	#11
KBM 2024 SubLV41 Pledge Member Join Date: Jan 2010 Real Name: K. Location: 780 Posts: 10,451	Extremely useful. Many thanks, OP!

17 April 2020, 04:37 AM	#12
WatchBrothersLondon 2024 Pledge Member Join Date: Mar 2019 Real Name: Ben Location: London, UK Posts: 615	Many thanks everyone for your kind words, really appreciated and I’m glad you’re finding it useful. There are a still a few nuances I’d like to add and will keep the article updated accordingly. All the best, Ben Sent from my iPhone using Tapatalk

10 June 2021, 12:58 AM	#13
Nachum "TRF" Member Join Date: Dec 2014 Location: NJ Posts: 22	Realize this thread's been stale for over a year, but I can't help but "bump" it, both to thank the OP and to highlight this write-up for others interested in the 3940.

10 June 2021, 02:05 AM	#14
erics "TRF" Member Join Date: Oct 2009 Location: london Watch: 5712r, XX, 1675 Posts: 190	Great stuff, i think i can contribute: i was at the PP diner for the 175th anniversary in London and did put my name down for the salmon dial 3940g (which i did not get). They made 15 if i remember correctly. In fact they made 15 of most of the itterations offered for sale that evening.

10 June 2021, 04:53 AM	#15
edhahn44 "TRF" Member Join Date: Jul 2019 Real Name: Eduard Location: Europe Posts: 331	It’s just an awesome watch. Grab one before they are gone... Sent from my iPhone using Tapatalk

14 June 2021, 11:40 PM	#16
erics "TRF" Member Join Date: Oct 2009 Location: london Watch: 5712r, XX, 1675 Posts: 190	oh and one more thing, there are a couple of blue face versions knocking about as well. A good friend of mine just sold hers brand new sealed that she had been keeping for years. I posted on the subject a while back.

24 September 2021, 06:32 AM	#18
RickInCA Banned Join Date: Dec 2020 Location: USA Posts: 42	Nice one

25 September 2021, 07:45 AM	#20
uniqueMR 2024 Pledge Member Join Date: May 2018 Location: USA Watch: P A T E K Posts: 4,706	The BEST ... __________________ A. Lange & Sohne \| Audemars Piguet \| F.P.Journe \| Omega \| Patek Philippe \| Rolex \| Tudor \| ...and Othersss

29 September 2021, 02:16 AM	#21
watchesinheaven "TRF" Member Join Date: Jul 2020 Location: Hong kong Posts: 16	This is my grail watch

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