The top pick for most shoppers typing "fake 1735 platinum" is a steel replica with an honest material description, not a watch sold as a platinum case. The original Patek Philippe reference 1735 is a platinum grande complication built in a small series starting in 1989, and real platinum is priced by weight and assay, so a listing that promises a platinum 1735 at replica prices is describing a finish, not a metal. The criteria below sort listings by material truth, case construction, movement, and how the seller answers a direct question about the metal.

What the reference 1735 actually is

Patek Philippe introduced the reference 1735 as a self-winding grande complication in a platinum case, produced in a limited series beginning in 1989. It ranks among the most complicated wristwatches the brand has built. That reputation is why the name appears on replica listings at all. A replica 1735 copies a shape and a dial layout; the movement inside is a different mechanism, and the case metal is whatever the factory chose that week.

What "platinum" means in a replica listing

Three things get sold under that word. First, platinum plating, often a few microns over brass or stainless steel. Second, a "platinum tone" polish applied to steel. Third, tungsten carbide, a dense gray metal picked because it copies some of platinum's heft. None of the three is platinum, and in the United States none may legally carry the word: under the FTC Guides for the Jewelry, Precious Metals, and Pewter Industries, a product must be at least 950 parts per thousand platinum to be marked or described as platinum.

How to check a platinum claim

  • Compare the weight to a steel watch of the same size. Platinum 950 sits near 20 grams per cubic centimeter; stainless steel sits near 8. That gap is easy to feel in the hand.
  • Read the hallmark. "PT950," "950 Plat," and "Plat" are the marks to look for. A blank caseback is also an answer.
  • Ask a jeweler for an XRF readout. X-ray fluorescence identifies platinum group metals without touching the case.
  • Do not treat the magnet test as proof. Platinum is close to non-magnetic, but common austenitic stainless steels are too, so a magnet passing tells you little.

Option 1: Platinum-plated steel replica

The most common build on the market. It buys you the correct silhouette and dial layout at the lowest cost.

  • Pros: Low price, wide availability, light enough for daily wear.
  • Cons: Plating wears through at the lugs and crown, the color reads gray rather than white, and the case carries no valid hallmark.

Use case: Buy this if you want the 1735 look for occasional wear and you accept that the metal is a coating. It is the right choice for a first replica and the wrong choice for anyone chasing the physical feel of platinum.

Option 2: Tungsten carbide case

Tungsten carbide is dense, hard, and gray-white, which makes it the closest cheap stand-in for platinum's weight.

  • Pros: Noticeable heft, strong scratch resistance, holds a polish longer than plated steel.
  • Cons: Brittle under impact, hard to refinish after a knock, heavier than a wrist expects, and still not platinum.

Use case: Pick tungsten if the weight in your hand is the part of the experience you care about. Skip it if you are rough on watches, since a cracked case cannot be repaired, only replaced.

Option 3: Custom case in genuine platinum

A small number of workshops will cut a case from PT950 stock and fit it to a replica or homage movement.

  • Pros: Actual platinum, correct density, correct cold white tone, and eligible for a proper hallmark if the alloy meets 950.
  • Cons: Material and machining can cost more than everything else in the build combined, few shops take the job, and resale value never approaches a genuine Patek Philippe.

Use case: This path suits a collector who wants the metal itself and can pay for it. If your goal is the appearance, the money is better spent elsewhere.

Red flags in a 1735 platinum listing

  • A price far below the scrap value of the platinum the ad claims.
  • "Solid platinum" with no photograph of a hallmark or caseback.
  • Evasive answers when you ask about alloy, plating thickness, or case weight in grams.
  • Stock photos reused across several sellers, with no image of the actual watch.
  • A water resistance rating listed next to a case with no visible gaskets or caseback seal.

Bottom line

Decide first whether you want the look or the metal. Most buyers want the look, and an honest steel or plated replica serves that at a fraction of the cost. If you want the metal, expect real platinum prices and a builder who will show you the assay. Either way, treat the watch as a novelty and never present it as a genuine Patek Philippe.