# 3940J Perpetual Calendar 18K Yellow Gold

- **Brand:** Patek Philippe
- **Price:** $93,650.00
- **Catalog:** europeanwatch
- **Retailer:** europeanwatch
- **Product URL:** https://go.cosimo.shop/r/gAAAAABq0dG1DryYIaKy7WuKz7pCddS42L67m50KeQr7ELDG_OG486oW73aDaelSzY__i6Hq94yCdmayKP9H3Lhh8L_AWqT-ErbLBMKvz17rQZleDTsjFtERw4tVKdrHvL_vdNWH9cU9bekI6V7PNMx7CQkdfwdyABTW3QEspHXmX63JtGM7KsZVUiz5xhSP6Bg13tDvVL_HfGgUUMe9c_DDnZ5ql7fBiAR8EMGkS9jP_bX-8yrdZwzv_koehcre5YZGGbPMbMGmkL8jAEXjaN7k2njGtVuUTBwrNd7hM3VP05fQ8e1bYz9JkXXRwbXdLM7-CgKBJj5tMGCdS_ibTAA_awR2kZklVpasMzW_ZAXDHDns54zpqJcqD0vypE_LkhTqKucio1-evxQLp672GuNJg3-p00OwgmgotIJMZUEcC1FH0SmRrWLJa6kUmr2x53SY873_9Epe17HOzvx8UsZDxp8YkISHU1ahBMN8mzDPDAK_OXErQvqOz3nNKVttbuuqKQmCu5ol
- **Availability:** In stock

## Summary

Luxury 18K yellow gold perpetual calendar watch featuring a silver dial, moon phase complication, and a blue alligator leather strap.

## Description

This Patek Philippe Perpetual Calendar reference 3940J is one of the defining modern perpetual calendars, prized for the balance of its display and the restraint of its proportions, a watch many collectors still regard as the reference point for the complication at Patek Philippe. Its self-winding caliber 240 Q with micro-rotor drives the perpetual calendar and moonphase with the clarity that made this model such a lasting benchmark. The 18k yellow gold case measures 36mm across and 8.8mm thick, notably slim for the complication and composed enough to disappear under a cuff when needed. A silver dial keeps the watch as calm as its architecture deserves. In the 3940, Patek Philippe made a perpetual calendar that feels complete, and that completeness still defines its appeal.

## Appearance

- **Colors:** silver
- **Materials:** Yellow Gold, alligator

## Categories

- **Categories:** Home > Patek Philippe > Perpetual Calendar > 71846

## Additional Attributes

- **box:** EWC Pouch
- **dial:** silver
- **model:** 3940J Perpetual Calendar 18K Yellow Gold Silver Dial
- **width:** 36, 36mm
- **height:** 36, 36mm
- **diameter:** 36mm
- **movement:** Automatic
- **condition:** Like New
- **reference:** 3940J
- **thickness:** 8.8, 8.8mm
- **certificate:** Extract from the Archives
- **depth rating:** 30m
- **original box:** 1
- **stock number:** 71846
- **case material:** Yellow Gold
- **complications:** Moonphase, Perpetual Calendar, Moonphase, Perpetual Calendar
- **strap material:** alligator
- **reference number:** 3940J

## Enrichment

- **Type:** watch
- **Type Synonyms:** wristwatch, timepiece
- **Gender:** unisex
- **Age Groups:** adult
- **Tags:** perpetual calendar, moon phase, 18k yellow gold, alligator leather strap, analog display, luxury watch, sub-dials
- **Styles:** classic, formal, luxury
- **Colors:** silver
- **Color Families:** Gray
- **Category Path:** Apparel & Accessories > Jewelry > Watches > Fine Watches
- **Band color:** Blue
- **Band pattern:** Animal
- **Case color:** Gold
- **Case pattern:** Solid
- **Dial color:** Silver
- **Dial pattern:** Solid
- **Watch case shape:** Round
- **Watch display:** Analog
- **Watch features:** Date Display, Moon Phase Display, Perpetual Calendar
- **Watch material:** Leather, Metal
- **Watch movement type:** Automatic
- **Canonical Brand:** Patek Philippe

## Images

- ![Image 1](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/cb7fa64a6e933885af93b0ef00a63a66.jpeg)
- ![Image 2](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/0588dd0001f7ba569a3bfa585dc04f3b.jpeg)
- ![Image 3](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/0e1f1c9bb60a8b4895ad2294db5ede8b.jpeg)
- ![Image 4](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/22ad622aa4489120be51367bd95b64fc.jpeg)
- ![Image 5](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/05912e8b2be7fb235e7b0a798819ad8f.jpeg)
- ![Image 6](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/c9c316e4259a77d9fe27e29bd26750a9.jpeg)
- ![Image 7](https://cdn.octogen.ai/79a4e8bf0f2f8b0ab69a067d5559d190/1bb8a938a94c7de87e865fe4a1095ec2.webp)

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*Source: cosimo.shop | Product ID: ffed7eca-4fcb-5255-aa93-2e699ec78273 | Canonical URL: https://cosimo.shop/product/patek-philippe/3940j-perpetual-calendar-18k-yellow-gold-24f0a092-b843-4ec1-bc36-a1d90d992746*