What the 730g Tag Actually Means
A fake Patek Philippe Twenty~4 listed as "730g" is not a Patek reference. Patek Philippe reference numbers run in a four-digit series followed by a material code, so a real watch reads 7300/1A, 7300/1200A, or 7300/1200R. Sellers use 730g as shorthand for one of two things: the 7300 Twenty~4 Automatic family, or the total weight of a gold replica build in grams. Confirm which meaning the listing uses before you pay, because the two claims point to different watches and different prices.
The Twenty~4 launched in 1999 as Patek's first collection designed only for women, and the Automatic version arrived later with a 36 mm case and a mechanical movement. Any replica sold under the 730g label should match that 36 mm automatic form, not the smaller 25.1 mm quartz original.
Prerequisites
- 10x jeweler's loupe
- Digital calipers
- Postal scale accurate to 0.1 g
- Timegrapher or a timing app
- Photos of the genuine 7300/1A and 7300/1200A from a dealer catalog
Step-by-Step Inspection
- Weigh the watch on the scale and write the grams down. A ladies' automatic in gold rarely passes 130 g, so a 730 g claim describes a full gold build or is simply invented.
- Measure the case across the bezel. The automatic Twenty~4 is 36 mm; a 25 mm result means you have a copy of the quartz 4910, not the 7300.
- Measure thickness at the crystal and compare it to the spec sheet the seller sent.
- Examine the crown with the loupe. Genuine crowns carry a crisp Calatrava cross and clean ridges.
- Check dial printing line by line. "PATEK PHILIPPE" sits above "GENEVE" with even spacing and no bleeding under magnification.
- Inspect the date window. The automatic places it at 6 o'clock with a beveled aperture and sharp numerals.
- Count the bezel diamonds and check their spacing. Poor replicas use uneven sizes or glue-set stones.
- Flip the watch and read the caseback. Look for stamped reference and serial numbers, hallmarks, and a 750 mark on gold models.
- Watch the seconds hand. A smooth sweep means mechanical; a once-per-second jump means quartz and a mismatched listing.
- Put the watch on a timegrapher and record rate, beat error, and amplitude.
- Inspect the bracelet links and clasp. Gold replicas should use solid links with screws, not folded steel and pins.
Where Cheap Copies Fail
Dial text and date alignment expose most fakes at first glance. Movement finishing exposes the rest, since a decorated rotor and perlage on the bridges cost money that budget builds skip. Diamond setting is the third failure point: genuine Twenty~4 bezels hold matched stones seated in a machined channel.
Legal Note
Counterfeit watches infringe trademarks, and US customs can seize shipments. Reselling a replica as genuine is a separate offense with steeper penalties. Treat 730g listings as novelty copies and never represent one as an authentic Patek Philippe.