A replica Patek Philippe 5370P is a copy of Patek Philippe's platinum split-seconds chronograph, and most copies sold from China do not reproduce the split-seconds function. The common build pairs a hand-wound chronograph movement with a second hand that looks like a rattrapante but does not run on its own. Case, dial, and weight are where the better copies put their money.
What the Genuine 5370P Does
Patek Philippe released the 5370P in 2015 as a 41 mm platinum split-seconds chronograph with a black grand feu enamel dial. The watch runs the CHR 29-535 PS caliber, a hand-wound movement with a horizontal clutch and column wheel. A blue-dial version arrived later with the same case size and movement family.
Split-seconds means two chronograph hands share one dial. Press the pusher at 4 o'clock and one hand freezes while the other keeps running, then the stopped hand catches up to the live one. It is a small mechanical trick that costs real money to build well.
What a Replica 5370P Actually Contains
Replica factories in Guangzhou and nearby hubs build the 5370P in tiers. The entry tier is a quartz watch with printed subdials. The middle tier runs an Asian hand-wound chronograph, often a Seagull ST19 derivative. Top tiers use a decorated unit with Geneva stripes, blued screws, and a platinum-tone case.
The Split-Seconds Problem
The rattrapante module is the hard part. It needs an extra wheel, a clamp, and two hands that stay aligned under load. Few replica makers attempt it, and the ones that do charge several times the price of a standard chronograph copy. Most 5370P replicas fake it: the second hand is fixed to the running hand, so the lower pusher either does nothing or starts and stops the whole chrono.
A quick test is to run the chronograph, press the split pusher, and watch the hands. On a real split-seconds watch, one hand freezes while the other keeps sweeping. On a fake, both move together or both stop.
Case, Dial, and Weight
Genuine 5370P cases are platinum, which is denser than steel and warmer in tone. Replicas use 316L steel with rhodium or platinum-family plating, so a copy feels lighter in the hand than the real thing. The dial is the second giveaway. Grand feu enamel has depth and no visible print edges, while replica dials use lacquer or pad printing over a metal base.
Sapphire on the front is standard in mid and top tiers. Caseback engraving quality varies, and hallmarks and reference numbers often come out softer than the original stamps.
Price Tiers for a 5370P Replica
- Under $80: quartz, mineral glass, no working subdials beyond a date wheel, printed dial.
- $150 to $400: Asian hand-wound chronograph, sapphire crystal, closer case profile, fake or absent split-seconds.
- $500 to $1,000 and up: decorated movement, better dial, correct pusher placement, still a single running chronograph hand.
Prices shift with factory batches and dealer markup. A price above $1,000 only makes sense if the seller can show the split-seconds function working on video with a timer.
How to Check a 5370P Replica Before Paying
- Ask for a video of the chronograph started, split, and caught up. A fake cannot do the catch-up.
- Request the weight in grams. Steel copies of a 41 mm chronograph land near 80 to 100 grams; platinum is heavier.
- Check pusher alignment and crispness. Mushy pushers on a chronograph point to a cheap movement.
- Look at subdial spacing and numerals. Misaligned small seconds or a wrong numeral shape shows up in photos.
- Confirm the return policy in writing before you send money.
Legal and Practical Risks
Counterfeit watches infringe trademarks, and US Customs can seize shipments at the border. Buying from overseas also means no warranty, no service path, and no resale market. If the movement fails, a local watchmaker may refuse the repair or lack parts.
Payment methods matter too. Sellers who take bank transfer or crypto only leave you with no recourse. A credit card or a platform with buyer protection gives you a way out.
Should You Buy a Replica 5370P?
If you want the look of a complicated platinum Patek for daily wear, a mid-tier copy delivers that at a fraction of the price. If you want a working split-seconds chronograph, no replica at a normal price will give it to you. A used steel chronograph from a real brand costs about the same as a top-tier copy and comes with a service network.
FAQ
Is there a replica Patek Philippe 5370P with a real split-seconds movement?
Rare, and expensive when it exists. A handful of small workshops have built rattrapante copies, but prices move into the thousands and parts support is thin. Most sellers who claim a working split-seconds are describing a decorated chronograph.
How much does a replica 5370P cost?
Expect about $150 to $400 for a decent hand-wound copy and $500 to $1,000 for a top-tier build. Anything under $80 is quartz with a printed dial.
Can I tell a 5370P replica from the real watch?
Yes, on weight, dial finish, and chronograph behavior. Platinum feels dense and cool, and enamel has a glassy depth that lacquer lacks. The split-seconds test settles it in seconds.
Will a jeweler service a replica 5370P?
Most will not, and some will refuse to open it. Independent watchmakers who work on Chinese movements are the practical option, and parts often come from another donor watch.
Does the replica use the same movement as the real CHR 29-535 PS?
No. The real caliber is built in-house by Patek Philippe and is not sold as a part. Replicas use Asian chronograph movements with cosmetic finishing.