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Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940
Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940
Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940
Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940
Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940

Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940


Brand: Patek Philippe
Model: Perpetual Calendar
Reference: 3940
Gender: Gents
Year: 1987
Material: 18k YG
Dial Color: Silver
Dimensions: 36mm
Watch Movement: Self-Winding
Bracelet/Strap: Grey Handmade Leather Strap
Box/Paper: Archive Paper
Condition: Likely Never Polished, Original Finish
SKU: 133951
The Patek Philippe Perpetual Calendar 3940 was released in 1986 and set a high bar for modern perpetual calendars. Rumor has it, the 3940 was the watch of choice for Patek patriarch Philippe Stern. The 3940 features an automatic, micro-rotor powered calibre 240-Q movement and a very wearable 34mm case. The first series of 3940s, which were released in 1986, feature what is now referred to as a first series dial. The watch offered here is a first series 3940 with a solid gold caseback and was sold in August of 1987. The watch is in excellent condition, likely never polished and very well kept. This watch comes with an extract from the archives of Patek Philippe.

Please feel free to get in touch with any questions. The best way is to email us at hello@thekeystone.com or text/call (213) 632-9061

If you are interested in selling your watch, please include as much information as possible, as well as photos. You may also email photos to hello@thekeystone.com 

When a watch is purchased, our watchmaker will perform a thorough inspection of the movement and perform a number of tests to ensure the watch is functioning in top condition before shipping. This process can take 7-10 business days. 

Once your watch is ready, watches shipped within the United States are sent via insured FedEx Overnight and will arrive the next day. We will send over tracking information once the watch ships. 

International shipping is $100 and will be included during checkout. International shipping can take a number of days considering customs and travel. 

We know it can be difficult be completely certainly that a watch's condition, size or shape is what you are looking for. 

We provide a 5 day inspection period from delivery so that you may receive the watch and decide if it is right for you. 

This is not a trial period; our watches are well documented and any wear or damage will be deducted from the return amount. 

We do accept trades for watches. Please send any relevant information about your watch's condition, accessories and history to hello@thekeystone.com

Keep in mind that full payment is a much faster process and this will remain available. 

Contact Us

Please feel free to get in touch with any questions. The best way is to email us at hello@thekeystone.com or text/call (213) 632-9061

If you are interested in selling your watch, please include as much information as possible, as well as photos. You may also email photos to hello@thekeystone.com 

Shipping

When a watch is purchased, our watchmaker will perform a thorough inspection of the movement and perform a number of tests to ensure the watch is functioning in top condition before shipping. This process can take 7-10 business days. 

Once your watch is ready, watches shipped within the United States are sent via insured FedEx Overnight and will arrive the next day. We will send over tracking information once the watch ships. 

International shipping is $100 and will be included during checkout. International shipping can take a number of days considering customs and travel. 

Return Policy

We know it can be difficult be completely certainly that a watch's condition, size or shape is what you are looking for. 

We provide a 5 day inspection period from delivery so that you may receive the watch and decide if it is right for you. 

This is not a trial period; our watches are well documented and any wear or damage will be deducted from the return amount. 

Trades

We do accept trades for watches. Please send any relevant information about your watch's condition, accessories and history to hello@thekeystone.com

Keep in mind that full payment is a much faster process and this will remain available.