Short answer
Rolex has no reference 126612LB. The number does not appear in the Rolex catalog. It sits between two real references: 126610, the stainless steel Submariner Date 41, and 126613, the two-tone Submariner Date 41. The suffix LB stands for lunette bleue, the blue bezel. A 126612LB replica is a replica of the two-tone blue Submariner Date 41, ref 126613LB. Sellers print the wrong number, and the error repeats across wholesale sheets and search results.
The real watch: ref 126613LB
Rolex released the 41 mm Submariner Date in 2020. The 126613LB pairs an Oystersteel case with an 18 ct yellow gold bezel, crown and bracelet center links. Case size 41 mm, lug width 21 mm, water resistance 300 m. Blue Cerachrom ceramic insert with gold numerals and graduations. Blue sunray dial. Calibre 3235 with a 70-hour power reserve, 28,800 vph, Chronergy escapement, rated -2/+2 seconds per day. Oyster bracelet with Oysterlock clasp and Glidelock extension.
Reference numbers to compare
- 126610LN: steel, black bezel and dial
- 126610LV: steel, green bezel, black dial
- 126613LN: two-tone, black bezel and dial
- 126613LB: two-tone, blue bezel and dial
- 126618LB: full yellow gold, blue bezel and dial
- 126619LB: white gold, blue bezel, black dial
No 126612 or 126612LB appears in that list. The digit 2 in the fourth position marks a steel case in Rolex numbering, and the two-tone case belongs to 3.
What 126612LB replica listings sell
Most listings that carry the number ship a 41 mm two-tone Submariner with a blue dial and a blue insert. Case metal is the first split. Low tier uses 316L steel with gold color applied by PVD or thin plating. Mid tier uses 316L or 904L steel with thicker plating. Top tier claims 904L steel and gold wrapping, where a sheet of gold alloy is bonded to the steel instead of plated. Ask the seller which one applies and get the answer in writing. Weight tells part of the story: a genuine 126613LB sits near 165 g to 170 g with all links, so a replica at 130 g carries less steel or less gold.
Check points on a two-tone blue Sub replica
- Gold tone. Compare the bezel edge, crown and center links in daylight. Yellow gold on the genuine watch reads warm, not orange and not pale.
- Plating wear. Edges show first: crown guards, clasp corners and the inner bracelet sides.
- Bezel insert. Genuine Cerachrom is glossy with recessed numerals filled by PVD gold. Replica inserts show flat color, dust under the lacquer or painted numerals that rub off.
- Dial. Sunray blue shifts tone as the wrist turns. Print stays sharp at the coronet and the Submariner line.
- Date window. Magnification measures about 2.5x on the real watch.
- Hand stack. Hour, minute, second and the lume plot align at 12.
- Movement. A clone of the 3235 keeps the 70-hour claim. Older clone 3135 parts or an ETA copy run about 40 hours.
- End link fit. No gap or step where the end link meets the lugs.
- Rehaut engraving. The ROLEX repeat aligns with the minute track.
- Crown. Triplock crown with three dots under the coronet.
Price bands
Two-tone Submariner replica listings run from about $120 to more than $700. Under $200 buys a stamped case, a low-beat movement and gold paint. The $300 to $500 band adds a ceramic insert, a clone movement and better bracelet finishing. Above $600 sellers claim 904L steel and wrapped gold. Check with a scale, a loupe and daylight photos before paying. No replica carries a Rolex warranty or factory service, and resale value is near zero.
Legal note
Counterfeit watches are illegal to sell in the US under the Trademark Counterfeiting Act. A personal purchase still carries risk at customs. This page describes the market and the reference numbers. It is not a recommendation to buy.