Patek Philippe Yellow Gold Golden Ellipse Ref. 3604 with Copper Dial, Recently Serviced

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Brand: Patek Philippe
Model: Ellipse
Reference: 3604J
Material: 18k YG
Dial Color: Copper Color
Dimensions: 36 mm
Watch Movement: Self-Winding
Bracelet/Strap: Yellow Gold
Box/Paper: Watch Only
Condition: Excellent Overall Condition, No Notable Signs of Wear
SKU: 208544

There are few shapes in watchmaking as immediately recognizableor as quietly sophisticatedas the Patek Philippe Golden Ellipse. Introduced at the end of the 1960s, its proportions were guided by the Golden Ratio, resulting in a form that feels less designed than inevitable: neither round nor rectangular, but something softer, more architectural, and unmistakably Patek.

This Reference 3604 in yellow gold is a particularly compelling expression of that idea. Slim, elegant, and perfectly balanced on the wrist, the case has been preserved in excellent condition, with strong definition to the edges and crisp transitions that speak to careful wear over time. It retains the lithe, jewelry-like presence that made the Ellipse a favorite among collectors who appreciate restraint over bravado.

The woven gold bracelet elevates the watch even further. Supple and fluid, it drapes across the wrist like fabric, catching light with every movement. Theres a tactility to these bracelets that modern construction rarely replicatesrich, intricate, and unmistakably period. Importantly, it remains generously sized at approximately 18cm, a rarity for vintage integrated bracelets and a welcome practicality for contemporary wear.

And then there is the dialthe piece de resistance. What was once a warm metallic tone has matured into an extraordinary aged copper hue, alive with depth and subtle variation. In different light it shifts from burnished bronze to rose-gold ember, giving the watch a warmth that perfectly complements the yellow gold case and bracelet. Minimalist hour markers and slender hands allow the surface to take center stage, creating a composition that feels more like modernist design than traditional watchmaking.

Freshly serviced by Patek Philippe, the watch offers not only aesthetic appeal but mechanical confidence, ready to be worn and enjoyed daily without compromise.

Understated yet deeply expressive, this Golden Ellipse 3604 captures Patek Philippe at its most refinedwhere proportion, material, and tone matter more than complication. A study in elegance, and a quietly spectacular example with one of the most beautiful copper dials youre likely to encounter.

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 or trading 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 can take a number of days considering customs and travel. Straps made from exotic materials banned for import will be removed from the watch prior to shipping.

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. 

The Keystone offers a one-year warranty covering all mechanical aspects of the watch. This includes abnormal time keeping relative to the watches age, battery replacements and general mechanical issues inside the watch. Many of the watches we sell are vintage and thus may gain or lose more time than modern specifications. We reserve the right to use our discretion and experience to determine acceptable time keeping for vintage watches.

At The Keystone, we accept payment via Credit Card, Bank Transfer and major Cryptocurrency Coins. Please reach out via email with any questions about payment to Hello@thekeystone.com

Why Buy from The Keystone?

With a long track record of trust and smooth dealings, we have prioritized our relationships with our customers over individual sales. We know that our reputation is where we stand out from the rest and we strive to continue that tradition. We guarantee authenticity and remain available if you have any questions.

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