Short answer

Sellers use the code 126612LB for a Submariner Date 41 with a blue ceramic bezel and a blue dial. Rolex does not list 126612LB in its catalog. The Rolex references for that look are 126613LB (steel and yellow gold), 126618LB (yellow gold) and 126619LB (white gold). In Rolex naming, LB means lunette bleue, blue bezel. Treat 126612LB as a seller code. The watch behind the code is a 41 mm Submariner Date replica with a blue dial, a blue bezel insert, and a gold or two-tone case finish.

Gen spec the replica copies

  • Case: 41 mm Oyster case, 21 mm lug width
  • Materials: Oystersteel with 18k yellow gold, or full 18k yellow gold on 126618LB
  • Bezel: blue Cerachrom ceramic insert, platinum-filled numerals in gen
  • Movement: Rolex caliber 3235, 28,800 vph, 70 hour power reserve
  • Water resistance: 300 m, Triplock crown
  • Crystal: sapphire with Cyclops, 2.5x date magnification
  • Bracelet: Oyster with Glidelock clasp

Price tiers

  1. USD 100 to 200: 2813 movement, painted or printed bezel insert, hollow bracelet feel, date font off.
  2. USD 250 to 450: clone 3135 or 2824/SW200 movement, ceramic insert, plated gold, decent dial print.
  3. USD 500 to 900: clone 3235, 904L or 316L case, gold wrap or thick plating, correct rehaut and date wheel.

Ask the seller which factory built the watch. Names move between batches, so a factory name on a listing is a weak signal. A timegrapher photo is a stronger one.

QC photo checklist

  1. Dial print: the coronet sits centered above ROLEX, and the OYSTER PERPETUAL DATE line is crisp at macro distance.
  2. Rehaut: the ROLEX engraving lines up with the minute markers on both sides.
  3. Bezel insert: numerals read gray-white platinum, not bright silver paint. The lume pip sits centered at 12.
  4. Date window: 2.5x magnification, correct font, no gap at the edges of the Cyclops.
  5. Hands and markers: lume fill level, no dust under the crystal.
  6. Case finish: lug brushing, polished chamfers, drilled lug holes if the batch has them.
  7. Bracelet: solid end link fit at the lugs, no rattle, clasp action, code stamps under the clasp.
  8. Movement photo: rotor engraving, balance bridge shape, and a timegrapher readout.

Movement and accuracy

Clone 3235 movements run at 28,800 vph and claim 70 hours of reserve. Measured reserve on clones lands lower. A reading of plus or minus 10 seconds a day is normal for a clone. A Sellita SW200 build runs about 38 hours and holds tighter rates out of the box. A 2813 at USD 120 runs rough and has a noisy rotor.

Water resistance and care

Most replicas pass a 3 bar to 5 bar pressure test after a gasket check. Do not dive or shower with an untested replica. Have the caseback gaskets greased once a year. Two-tone gold plating wears at the clasp and crown first. Plating thickness varies by factory, so ask for the micron figure if the seller quotes one.

Legal note

Counterfeit watches are illegal to sell or traffic in the US under 18 U.S.C. 2320. US Customs can seize and destroy shipments. The Swiss watch federation tracks seizure data each year. Buy with that risk in mind.