Best Quality Fake Patek Philippe 3700

Patek Philippe released the Nautilus 3700/1A in 1976. Gerald Genta drew the case. The steel case measures 42 mm wide and 7.6 mm thick. It holds calibre 28-255C, an automatic that measures 3.75 mm. Reported retail in 1976 was about $3,100. Steel 3700/1A examples now sell at auction in the six-figure range.

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Replica makers copy the 3700 for the same reason buyers want it: the shape. The 7.6 mm profile is the hard part. Most 3700 replicas measure 9 mm to 10.5 mm thick. The bezel is flat, and the bracelet tapers toward the clasp. Errors in either area show at arm's length.

Fake Patek Philippe 3700 vs Original: An Honest Comparison

Top Pick: 1:1 Grade 3700/1A

This is the tier to buy. Price runs $450 to $750. Case metal is 316L or 904L steel, 8.6 mm to 9.2 mm thick. Movement is a Miyota 9015: 24 jewels, 28,800 vph, 3.9 mm thick, date at 3 o'clock, rotor decorated to look like a 28-255C. Crystal is sapphire with inner anti-reflective coating. Dial has applied markers and a stamped grid pattern. Bracelet uses solid links and screws, not friction pins. Water resistance claims above 50 m are unverified. Pressure test the watch before swimming.

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Second Option: Mid Grade, $220 to $350

Mid tier watches use a clone of the ETA 2824 or a Seagull ST21. Both are 4.6 mm thick, so the case grows to 9.8 mm or more. The date font is often wrong. The bracelet end links sit proud of the case. Sapphire is common here. Case backs are usually engraved, not stamped.

Patek Philippe 3700 Replica Review: Which Build to Pick First

Third Option: Budget, $80 to $150

Budget builds use a Chinese automatic or quartz. Case thickness reaches 10.5 mm. Glass is mineral. Bracelet links are folded steel. Plating on gold-tone versions wears through in months. This tier does not look like a 3700 on the wrist.

What to Check Before Buying

  • Case thickness, measured with calipers, not by the seller.
  • Movement photo with the case back off.
  • Bracelet taper and clasp stamping.
  • Dial grid lines, which should be crisp and even.
  • Return policy in writing.

Factory names change. No public registry verifies them, and sellers reuse the same labels for different builds. Ask for photos of the case back, the crown, and the clasp. Ask which movement is inside. If the seller will not answer, buy elsewhere.