Quick answer
A Blancpain automatic clone is a copy of a Blancpain watch with a mass-produced automatic movement inside. Most use a Seagull ST2130, a Hangzhou 6300, or a Miyota 9015. The case, dial, hands, and bezel copy a real reference such as the Fifty Fathoms 5015 or the Bathyscaphe. The movement does not match. Blancpain makes its own calibers and shows them through a sapphire caseback on most Fifty Fathoms models.
What Blancpain puts in the real watches
Blancpain has built watches in Le Brassus, Switzerland since 1735. The company sits inside the Swatch Group. Two automatic calibers cover most of the current line.
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- Caliber 1315: automatic, three mainspring barrels, 120 hours of power reserve, 4 Hz (28,800 vph), silicon balance spring. It powers the 45 mm Fifty Fathoms 5015 and the 43.6 mm Bathyscaphe.
- Caliber 1150: automatic, twin barrels, 100 hours of power reserve, 3 Hz (21,600 vph), about 3.25 mm thick. It powers the 38 mm Bathyscaphe and several Villeret references.
Blancpain finishes these movements with cotes de Geneve, perlage, and a gold oscillating weight on several references. The Fifty Fathoms 5015 case measures 45.00 mm across and 15.40 mm thick. Water resistance is 300 m.
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Movements inside the clones
Clone sellers list a movement by name. The list is short.
- Seagull ST2130: a Chinese copy of the ETA 2824-2. 28,800 vph, 28 jewels, about 38 hours of reserve.
- Hangzhou 6300: another 2824 pattern. Same beat rate.
- Miyota 9015: a Japanese automatic. 28,800 vph, 24 jewels, about 42 hours of reserve.
- Sellita SW200 or ETA 2824-2: Swiss made, found in higher-priced clones. About 38 hours of reserve.
None of these calibers has three barrels, a 120-hour reserve, or a silicon balance spring. A clone that claims a 120-hour reserve on a 4 Hz movement with 38 hours of real run time carries a rebadged third-party movement.
Signs to check on a clone
- Caseback. The 5015 has a sapphire back. Look at the rotor engraving, the jewel count, and the finish. Plated brass rotors and printed text are the norm on clones. Gold rotors are not.
- Power reserve. Wind a real 1315 and set it down. It runs for five days. A 2824 pattern stops in under two days.
- Case size. Measure the case with calipers. Clone cases run wide or narrow by 0.5 mm to 1 mm against the published numbers.
- Bezel insert. The 5015 uses a sapphire insert with luminous markers. Clones often use printed mineral or sapphire with weak lume.
- Serial and papers. Blancpain numbers each case and matches it to a certificate. Clone serials repeat across batches.
- Dial feet. A clone dial sits on ETA pattern feet. The real dial feet sit where the 1315 or 1150 needs them.
Legal status in the US
Selling a counterfeit watch violates the Lanham Act, 15 U.S.C. 1114 and 1125. Criminal penalties sit in 18 U.S.C. 2320. U.S. Customs and Border Protection can seize and destroy counterfeit imports under 19 U.S.C. 1526. Buying one watch for personal use is a gray area, but the shipment can still be seized at the border. Reselling is the part that carries jail time.
Service and parts
Brand service centers do not accept counterfeits. Parts for the 1315 and 1150 are not sold to independent watchmakers. A clone owner is tied to the third-party movement network for repairs. A Seagull ST2130 service costs less than a real Blancpain service, and the parts are available from generic suppliers.
What is not known
Clone sellers change movements between batches without notice. The same listing can ship with a Miyota in one order and an ST2130 in the next. Factory sources are not public. No one publishes production numbers for counterfeits, so any claim about a best clone factory is marketing.