Quick answer
A Cartier Santos offered as 162367 is, in most cases, a seller stock code rather than a Cartier case reference. Genuine Santos watches carry a short case number on the case back (1564, 2961, 2656, W20073X8 and similar) next to a separate serial number. If a seller quotes 162367 as the model, ask for a clear photo of the case back before anything else. Then work through the checks below.
What you need
- A 10x loupe or a phone macro lens
- Bright light you can angle across the metal
- Reference photos of a known-genuine example of the same Santos reference
- The seller's full-resolution photos of dial, case back, crown, clasp and movement
How to check a Santos step by step
- Read the case back first. Ask for a macro shot in raking light. Genuine engraving cuts sharp and even, with consistent depth. Counterfeit backs show shallow laser etching, rounded letter edges, or a stamp that looks applied. Confirm the Cartier name, case reference, serial, water resistance and metal purity all sit on the same back.
- Match the serial to the paperwork. The serial on the case back must match the warranty card, invoice and any service papers. A mismatch, or a serial that looks scratched out or over-stamped, ends the inspection there.
- Turn the bezel screws. The Santos bezel and bracelet use flat-head screws with a single straight slot. On a genuine watch they sit flush, sit at the same height, and turn with a proper screwdriver. Counterfeits use glued-in dummy screws, Phillips heads, or slots that sit off center.
- Look at the crown cabochon. The blue stone should be a smooth faceted dome with deep color and no seam where it meets the crown. Plastic and glass copies show bubbles, a flat top, or a visible glue ring.
- Study the dial. Print should be crisp under magnification. On many Santos dials the word Cartier hides inside the strokes of the VII numeral, so check that detail against a reference photo. Confirm the date window shape and position, and the Swiss Made text at six o'clock.
- Check the hands and the second hand. Genuine hands have polished bevels and clean edges. A quartz Santos ticks once per second, an automatic sweeps. If a seller calls the watch an automatic and the second hand jumps, stop.
- Weigh and measure the case. Compare case width, thickness and lug-to-lug against published specs for that reference. Copies run wider or thicker by one to two millimeters, and the case feels light for the size.
- Inspect the bracelet and clasp. Link screws should match the bezel screw style. The folding clasp should be signed and close with a firm click. Run a finger along the link edges and look for burrs.
- Have a watchmaker open the case. Movement, rotor engraving, jewel count and finishing settle the question. Cartier automatics show signed rotors and calibre numbers. Copies show generic movements, sometimes with no markings at all.
- Compare the price to the market. A steel Santos Galbee trades in a range a counterfeit cannot reach. A price far below that range is the strongest single signal you will get.
Red flags
- Seller will not photograph the case back
- Only 162367 is given, with no case reference
- Photos that are cropped or soft at the dial
- Case back with no serial, or a serial that does not match the card
- Screws that do not turn, or screw heads that are not flat-head
- Plastic cabochon on the crown
Bottom line
Treat 162367 as a listing label until the case back proves otherwise. The reference number, the serial on the back, and the movement inside are the three facts that decide whether a Santos is real. Photographs of the case back cost a seller nothing, so a refusal to send them tells you what you need to know.