Short answer
A Cartier Ballon Bleu replica in 36 mm is a copy of the mid-size Ballon Bleu de Cartier. The genuine case sits near 36 mm across and about 12 mm thick. Replicas in this size run quartz or automatic, sapphire or mineral glass, and a cabochon in the crown made of glass, synthetic spinel, or plastic. Price runs from about $150 to $500. The main tells are case thickness, dial printing, and the crown cabochon.
Gen specs to compare against
- Case: steel, 36 mm class. Cartier lists 36.6 mm on some references.
- Thickness: about 12 mm on the automatic.
- Movement: Cartier caliber 076, automatic, Sellita SW200-1 base, 25 jewels, 28,800 vph, about 38 hours of reserve.
- Crystal: sapphire, convex.
- Crown: fluted steel with a blue synthetic spinel cabochon, set under a crown guard that is part of the case.
- Dial: Roman numerals, blued steel sword hands, minute track on the flange. Some references carry flinque guilloche texture.
What 36 mm replicas get wrong
- Thickness. Many 36 mm replicas measure 13 mm to 14 mm. The case back sits high on the wrist.
- Crown cabochon. Genuine is a domed synthetic spinel. Copies use flat glass or dyed plastic. The color reads purple under LED light.
- Dial print. Roman numerals lose serif weight. The secret signature inside the VII numeral is missing or blurred.
- Hands. Blued steel on the gen. Copies use painted steel that reads a lighter blue.
- Bracelet. Genuine links taper and carry a signed clasp. Copies show shallow engraving.
Movement options in replicas
36 mm copies use three movement families. Quartz: no sweep, about $150 to $200. Miyota 9015: Japanese, 24 jewels, 28,800 vph, about 42 hours. Seagull ST2130: Chinese, 28,800 vph. None is the Cartier 076. Date position and stem height differ, so a copy with a date window can show the wrong font.
Buyer's Guide: Replica Cartier Ballon Bleu Watch, 36mm
Checks before you buy
- Ask for case thickness measured with calipers, not the listing text.
- Ask for a side photo of the crown cabochon.
- Ask for the dial at 10x. Look at the VII numeral for the secret signature.
- Confirm the crystal is sapphire. Mineral glass scratches.
- Confirm case back markings and serial format.
What we cannot confirm
Factory names change. Weight figures for 36 mm copies are not published in reliable form. Genuine retail prices move, and Cartier updates them by market.