The Patek Philippe Nautilus 6790 is a ladies' quartz watch from the 1980s and 1990s. It has a 27.5mm steel case, an integrated bracelet, and a date window. Replicas of this reference are not as common as men's Nautilus copies. This guide covers the model, replica quality, and purchase risks.

History of the Nautilus 6790

Patek Philippe introduced the Nautilus line in 1976. The 6790 was part of the ladies' collection. It used calibre E15 quartz. Production ran until the early 2000s. The watch is now a vintage collectible.

Replica Quality and Materials

Most replica 6790 watches use a steel case. Dial versions include silver, blue, or slate colors. Some replicas add diamonds to the bezel. The quality varies from low-end to premium. A premium replica has a sapphire crystal and a properly shaped case. Low-end versions often have a mineral crystal and a poorly finished bracelet.

Key Differences Between Real and Fake

Measure the case. Real 6790 is 27.5mm. Many fakes are larger. Compare the dial texture. Real dials have a fine horizontal brushed finish. Look at the date font. Patek Philippe prints a bold, clean font. Check the movement. Calibre E15 has a specific rotor and markings. Open the case back if allowed. A quartz movement with no engravings is a common fake sign.

Prices and Sellers

Authentic 6790 models sell for $15,000 to $30,000. Replicas sell for $200 to $500. Do not pay more than $500 for a replica. Trusted sellers show real photos and describe the watch as a replica. Avoid sellers who use stock images or claim the item is original.

Legal and Practical Risks

Replica watches are illegal to import in the United States. Customs may seize them. Patek Philippe enforces its trademarks. Buying a replica supports counterfeiting. The watch has little resale value. Repair parts are hard to find. Consider these risks before purchase.