Short answer
No Cartier Drive de Cartier has a 46 mm case. Cartier lists the Drive de Cartier line from about 39 mm to 41 mm across the case. A search for "fake drive 46mm" points to one of three things: a replica of a different 46 mm watch, a Drive-style replica in an oversized case, or a seller who copied the wrong number from a spec sheet. Ask for the case diameter in millimeters and a photo of the case next to a ruler before you pay.
What 46 mm measures
Case diameter is the width across the case at the widest point, crown excluded. 46 mm is a large case. A 46 mm case spans 4.6 cm. A 40 mm case spans 4.0 cm. That 6 mm gap changes how the watch sits on the wrist and how the lugs meet the strap.
Where 46 mm cases come from
- IWC Big Pilot's Watch: earlier generations list 46 mm class cases.
- Breitling Navitimer: 46 mm versions exist in the line.
- Panerai Luminor: 44 mm and 47 mm cases.
- Hublot Big Bang: 44 mm to 45 mm cases.
A seller can pair a Drive dial with a 46 mm case. The result is not a copy of any Cartier reference.
How to Spot a Fake Drive 44mm Watch
Why replicas get sized up
Replica makers buy movements in bulk. Many automatic movements with added modules run 6 mm to 8 mm thick. A thin 40 mm case cannot hold them without a bulge. A 46 mm case hides the extra height and the extra width. The tradeoff is weight and balance. A steel 46 mm replica on a strap lands near 110 g to 150 g.
How to check a listing
- Ask for case diameter and lug-to-lug distance in millimeters. Both numbers.
- Ask for a photo with calipers on the case edge.
- Ask for case thickness. Many 46 mm replicas measure 14 mm to 17 mm.
- Ask for the movement name, jewel count, and beat rate.
- Ask for the weight in grams.
- Ask for the crown position and the date wheel font.
If the seller cannot give the diameter in millimeters, the size is unknown.
Fit on the wrist
Measure wrist circumference with a tape. A 165 mm (6.5 in) wrist and a 46 mm case do not pair well. The case overhangs the wrist edge and the lugs press into the skin. A 190 mm (7.5 in) wrist and up carries 46 mm with less overhang. Lug-to-lug under 55 mm keeps the case inside the wrist line.
Water resistance and testing
ISO 22810 sets the test method and marking rules for water resistant watch cases. Replica cases carry no such test. Treat any depth rating on a replica as unverified. Keep the watch away from pools and showers.
What no guide can confirm
Photos do not show gasket quality, movement finish, or case material. A 46 mm replica may use 316L steel, plated brass, or a mix. Ask for the material. If the answer is vague, assume plated.