Quick answer
A "Drive 42mm steel" is shorthand for a Cartier Drive de Cartier in stainless steel with a 42mm cushion case. In the genuine lineup, 42mm maps to the chronograph references; the plain three-hand Drive is smaller, roughly 40mm across. So if a listing says 42mm steel Drive and shows a bare three-hand dial with a date, either the measurement is wrong or a chronograph case is being sold with a simpler dial. Compare the photo to the number before you pay.
Why 42mm matters more than it sounds
The Drive case is a cushion, not a circle. A rounded square spreads across the wrist diagonally, so a 42mm cushion reads closer to a 44mm round watch on a small wrist. Lug-to-lug is the number I actually ask for. On 42mm chrono cases it usually lands near 50mm, which is where a 6.25 inch wrist runs out of room.
What to look at on the steel
- Top surfaces brushed, bevels polished. Replicas that skip the bevel polishing look flat in daylight.
- Satin finish on the flanks should be fine, not gritty. Run a fingernail along it; cheap finishing catches.
- Lugs are short and curve down. Sharp lug edges are the first giveaway in the hand.
- Crown should carry a blue cabochon, spinel on replicas, set flush rather than glued proud.
Dial details that separate tiers
The genuine dial has a stamped guilloché center, concentric, with a slight sunburst underneath. Cheaper replicas print the pattern, so it looks like a flat sticker under a loupe and shifts hue oddly in low light. Roman numerals should be crisp with smooth black print, and the sword hands should reach close to the minute track without overshooting it.
Movements you will actually find
Genuine three-hand Drives run Cartier's 1904-PS MC; the chronographs run the 1904-CH MC. Replicas in this case size usually carry a Miyota 9015 or Seiko NH35 for the simple versions, and an A7750 or Seagull ST19 for the chrono. A 7750-based chrono adds thickness, often 14mm or more, which matters if you wanted a slim profile. Ask for the movement name in writing. "Japanese automatic" is not an answer.
Sizing and daily wear
On a 7 inch wrist, a 42mm cushion sits at the edge of comfortable and you will feel it on the back of the hand when you flex. At 7.5 inches and up it looks right. Strap width is typically 20mm or 21mm at the lugs, so plan for aftermarket straps before you buy. Water resistance claims on replicas are marketing. Treat any of them as splash-only and keep the watch away from pools.
Checklist before buying
- Confirm case width and lug-to-lug from a photo with calipers, not from the listing title.
- Ask which movement, then confirm it matches the one in QC photos.
- Look for polished bevels on the case sides.
- Check the guilloché is stamped or embossed, not printed.
- Confirm a proper folding clasp with correctly engraved branding.