Short answer

The phrase covers two watches. One is a copy of the Rolex Deepsea ref. 136668LB, the 18k yellow gold Deepsea that Rolex released in 2024 with a blue dial and a blue Cerachrom bezel. The other is any Deepsea copy that shows gold color, such as a gold-plated steel case, gold-tone bezel numerals, or gold text on a dial. The watches sit in different price bands and carry different tells. Real specs are 44 mm across, 3,900 m of water resistance, and caliber 3235 with a 70-hour power reserve. No replica meets those numbers.

Specs the real watch sets

  • Case: 44 mm. 18k yellow gold on ref. 136668LB, Oystersteel on ref. 136660.
  • Height: close to 18 mm at the case back, which is titanium on the current model.
  • Crystal: domed 5.5 mm sapphire. No Cyclops lens over the date on any Deepsea.
  • Bezel: unidirectional 60-minute Cerachrom insert with engraved numerals filled with gold.
  • Dial: blue with gold DEEPSEA text. Date at 3 o'clock.
  • Valve: helium escape valve at 9 o'clock, marked on the case band.
  • Movement: Rolex caliber 3235, 70-hour reserve, rated -2/+2 seconds per day after casing.
  • Bracelet: Oyster with Glidelock and Fliplock extension links.

Checks that catch most weak copies

  1. Look for a Cyclops lens. The Deepsea has none. A magnifier over the date means the case follows a Sea-Dweller or Submariner shape, not a Deepsea.
  2. Turn the bezel. Real inserts are ceramic with engraved, gold-filled numerals. Cheap copies use printed paint or an aluminum sticker that fades at the edge.
  3. Read the inner ring. The Ringlock text ORIGINAL GAS ESCAPE VALVE and RING LOCK SYSTEM sits on the inner flange. Font weight and spacing are the main tell on low-end dials.
  4. Weigh it. A steel Deepsea on a full bracelet sits near 200 g. Gold-plated steel copies land close to that figure, so the heft does not match a real 18k piece. Tungsten-core copies come closer in mass.
  5. Check the plating at the clasp, crown and case edges. Gold plate runs 2 to 5 microns on many copies. Rub points turn pale within months of daily wear.
  6. Compare dial blue. The 136668LB dial is blue with gold printing. Copies often print white text or use a flat matte blue.
  7. Check the case back. Titanium, plain, with factory engraving on the real piece. Many copies use a steel back with a display window, which Rolex does not fit to a Deepsea.

Movements inside copies

Two families show up. The first is a Chinese automatic based on a Seagull or Hangzhou design, often with a decorated rotor and a fake 3135 stamp. The second is a clone of the ETA 2824 or 2892, sometimes sold as SA3235 with a decorative plate over the balance. Claimed power reserve on these runs 38 to 42 hours against the 70 hours of the real 3235. Timekeeping sits near plus or minus 10 to 20 seconds per day. A watchmaker can regulate most of them.

Water resistance

No replica carries a 3,900 m rating. Gaskets, crystal thickness and case machining vary by batch and by seller. A pressure test at a local watch shop is the only way to know what a copy holds. Treat any Deepsea copy as splash resistant until a test says otherwise, and keep it out of salt water and steam.

Gold color and weight

18k yellow gold has a density near 15.5 g/cm3. Steel sits near 7.8 g/cm3. That gap drives the cost and the feel on the wrist. Gold-plated copies hide steel or brass under a thin layer, and the layer thins at contact points. PVD coatings run thinner than plated layers. Tungsten alloys raise mass but do not produce gold color, so a gold-tone finish still sits on top of the metal.

Price bands and service

Asking prices at online sellers cluster in bands: entry copies from about $80 to $150, mid tier from about $250 to $450, higher grade from about $500 to $900, and a small group above $1,000. Resale value is low in every band. Service at a local watchmaker runs from about $60 for a regulation to over $200 for a clean and oil, which can pass the price of a low-end copy.

Legal note

Counterfeit watches are illegal to import and sell in the United States. U.S. Customs and Border Protection can seize shipments under 19 U.S.C. 1526, and trademark holders can pursue sellers. Buyers face seizure and no factory warranty support.

Questions to ask a seller

  • Which movement, and can you send photos of the case back and the movement?
  • What is the weight in grams with all links fitted?
  • What is the plating thickness, and is it gold plate or PVD?
  • Has the watch passed a pressure test, and at what depth rating?
  • What is the return window, and who pays return shipping?