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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsThe Patek Philippe Ref. 5370P is a platinum split-seconds chronograph with a manually wound movement—but the reference covers two distinct dials. The original black-enamel 5370P-001 arrived in 2015; the blue-enamel 5370P-011 followed in 2020. Their case and caliber are shared, but the 30-minute counter moves from 3 o’clock on the black model to 6 o’clock on the blue one. This review separates the variants and explains what the extra chronograph hand does. It is based on published specifications and attributed reviews, not a hands-on examination by WatchRanker.
Which Patek Philippe 5370P is this?
“Ref. 5370P” can mean either the black-dial 5370P-001 or the blue-dial 5370P-011. Both use the manually wound CHR 29-535 PS and a 41 mm platinum case. The dial finish, strap color and counter layout distinguish them; specifications below are tied to the relevant variant rather than blended together.
| Detail | Black 5370P-001 (2015) | Blue 5370P-011 (2020) |
|---|---|---|
| Dial | Genuine black enamel on white gold; applied 18K white-gold Breguet numerals | Blue Grand Feu enamel on white gold; applied Breguet numerals |
| 30-minute counter | 3 o’clock | 6 o’clock |
| Subsidiary seconds | Not stated in the 2015 release as a position | 9 o’clock |
| Strap | Shiny black, hand-stitched alligator leather with large square scales | Night-blue alligator |
| Case and water resistance | 41 mm platinum; 13.56 mm thick; 30 m (3 bar) | 41 mm platinum; 13.56 mm thick; 30 m |
| Power reserve | 55-hour minimum to 65-hour maximum, per Patek Philippe’s 2015 release | Minimum 65 hours with the chronograph stopped, per Patek Philippe’s 2020 release |
The variant-specific details and figures come from Patek Philippe’s 2015 technical release and 2020 release. The different reserve wording matters: the 2015 figure is a stated range, while the 2020 release gives a minimum under the stated condition.
How the split-seconds chronograph works
A conventional chronograph measures elapsed time. A split-seconds chronograph, also called a rattrapante, adds a second central hand so you can read an intermediate or lap time while the main chronograph hand continues running. The stopped hand then catches up with the moving one. Patek Philippe’s instructions describe its purpose as follows: “Its ingenious function allows lap and intermediate times to be stopped without interrupting an ongoing measurement.”
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- precise tim keeping: Original Quartz Movement, provide precise and accurate time keeping. Analog display date at the 3 o'clock, it is easy to read time.
- Comfort Fit: This stainless steel strap watch not only offers a comfortable feel on your wrist but also pairs easily with any outfit. Our men’s wristwatches are perfect for the professional or the everyday man who is looking for a stylish match for his attire.
- Luminous Watches：HD luminous display hands,after absorbing light energy,you can easily check the time on the watch at night.
- Water Resistant to 30m : Waterproof (30 meters), wash hands, rain, no problem! Suitable for all kinds of business, leisure, indoor activities or daily use. NOTE: Do not wear this watch while pressing any button in the water or underwater activities such as prolonged diving.
- Perfect Gift for Men: Our mens watch blends in with every occasion be it formal or casual. Stainless steel strap watch can be used as a gift for father, friends, classmates and partners, and it is the best gift for yourself.
Operating the 5370P
- Press the pusher at 2 o’clock to start the chronograph; both chronograph hands begin together.
- Press the button integrated into the crown to stop the split-seconds hand and read the intermediate time while the other hand continues.
- Press the crown button again. The stopped hand catches up with the running hand.
- Press the 2 o’clock pusher to stop the chronograph, then the 4 o’clock pusher to reset it.
Patek Philippe’s official instructions warn not to reset before the chronograph hands are superposed: otherwise, the split-seconds hand may remain at its last lap-time position. The instructions also advise against leaving the chronograph running permanently because doing so could cause premature wear. On the blue 5370P-011, the rattrapante control is integrated into the crown at 3 o’clock; the start/stop and reset pushers are at 2 and 4 o’clock, respectively.
Movement and construction
Both variants use Patek Philippe’s manually wound CHR 29-535 PS, a 29.6 mm-diameter, 7.1 mm-high movement with 312 parts and 34 jewels. Patek’s 2015 release specifies two column wheels, a horizontal clutch, an instantaneous 30-minute counter, sweep chronograph and split-seconds hands, and subsidiary seconds. It also lists 28,800 semi-oscillations per hour (4 Hz), a Gyromax balance and a Breguet balance spring. These are construction and specification details, not an independent accuracy or performance assessment.
Rank #2
- Brand new top quality, easy to adjust the length to fit the wrist, one size fits all.
- Made top Italian cowhide material ,which is environmentally friendly and healthy, with moderate softness and very comfortable to wear.
- Moderate softness, very comfortable to wear, molded, strong and durable, wear-resistant strap/wristband, suitable for original watch.
- There are tools included in the package to help you easily insert and remove the strap, perfect for you to modify your watch.
- Exquisite packaging with exquisite workmanship and stylish design is a perfect gift for friends and family.
Patek Philippe says the movement includes an isolator that uncouples the split-seconds wheel from the chronograph wheel while the rattrapante hand is stopped, intended to avoid unwanted friction and degradation of balance amplitude. The maker also describes a lever and ruby roller that help keep the hands aligned when superposed. These are the manufacturer’s stated design functions, not independently measured outcomes.
Case dimensions and wrist fit
Patek Philippe gives both versions a 41 mm platinum case measuring 13.56 mm thick, with 30 m (3 bar) water resistance. The 2015 dimensions for the black 5370P-001 further specify 49.92 mm lug-to-lug, 45.62 mm across including the crown and 22 mm between the lugs. Its case has a sapphire-crystal display back and an interchangeable solid-platinum back, plus a diamond between the lugs at 6 o’clock. The 30 m rating is the published specification; it is not a basis for treating the watch as suitable for swimming.
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Rank #3
- VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER – Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing.
- Check Compatibility: This aftermarket replacement link measures 17mm wide and 6mm long (0.25 inch). Designed for the 41mm Patek Philippe Nautilus models, please measure your existing link to ensure proper fit before purchasing.
- Quality Construction: Crafted from high-quality 316L stainless steel, this heavy-duty link features a matte finish on the sides and edges, providing a durable and stylish upgrade for your Patek Philippe Nautilus watch band.
- Perfect Fit for Multiple Models: This link is compatible with Patek Philippe Nautilus models 5711, 5726, 5811, 5990, 5980, and more. Verify your model number for compatibility to ensure an exact fit with your watch.
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On the question of size, Felix Scholz wrote in Time+Tide on 20 April 2015 that the black-dial watch felt modern without being too large, and did not sit too high for a complicated movement. That is one reviewer’s subjective impression, not a universal fit verdict. Wrist comfort depends on wrist shape and preference, and this article does not claim a physical wear test.
Dial, case and finishing impressions
The black 5370P-001 pairs black enamel and white scales with applied white-gold Breguet numerals; the blue 5370P-011 changes the visual emphasis with blue Grand Feu enamel and a night-blue strap. The counter’s shift to 6 o’clock on the blue version also changes the dial’s balance, so the two should not be treated as simple colorways of an identical layout.
Rank #4
- ⌚PARAMETERS - Dia.:42mm, Adjustable band Width:18mm, Weight:130g
- ⌚Three-hand analog display with quartz movement. Keeps accurate time with convenient date window at 3 o'clock on the dial allows for easy visible date checking.
- ⌚The high-hardness mineral glass lens offers crystal-clear clarity and enhance anti-fog function. Watches consummate sealing process, ensure daily activities like hand washing, and splashes, not suitable for bathing, swimming, diving and so on.
- ⌚Crafted with precision, the elliptical porthole dial design highlights the fashion, simple and delicate luminous hands make the dial eye-catching.
- ⌚This classic men watch is suitable for every occasion, from daily office wear to casual outings and formal events: business, travel, sports, parties, adding a touch of luxury to your daily style.
Benjamin Clymer, writing for Hodinkee on 24 March 2015, called the black model “Pure Patek,” praising the combination of an in-house caliber, enamel dial and traditional styling. That is a critic’s evaluation rather than an objective ranking. Patek Philippe places the reference in a longer history of the complication: the company says its first split-seconds wrist chronograph was made as a special commission in 1923, with its first series-produced wrist chronographs following in 1927. That context does not establish an uninterrupted production lineage to the 5370P.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Pre-owned considerations and availability
Phillips describes the 5370P as launched at Baselworld in 2015 and discontinued in 2020 alongside the blue-enamel successor. That production-status description comes from Phillips, not a current availability notice from Patek Philippe. No current price, live inventory or authorized availability is established here; a CHF 220,000 figure reported by Time+Tide in 2015 is historical launch-era pricing, not a current valuation.
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- 100%brand new and quality,easy to adjust the length to fit the wrist,one size fits everyone.
- Made Italian cowhide material ,environmentally friendly and healthy,Softness is moderate, wear very comfortable.
- Softness is moderate, wear very comfortable,Compression molding, sturdy and durable,Wearable strap/wrist strap,suitable for original watch.
- Easy to insert and remove,very suitable for your watch.
- Exquisite craftsmanship and stylish design are perfect gifts for friends and family.
For a pre-owned example, assess the individual watch and its documentation rather than relying on the reference name alone:
- Condition: inspect the case, dial, hands, movement and strap, and ask what has been replaced or refinished.
- Service documentation: seek dated records identifying who performed the service and what work was completed.
- Provenance and completeness: confirm the watch’s history and which accessories, papers and packaging accompany it.
- Seller reliability: verify the seller, return terms and any claims about service or authenticity independently.
A Phillips listing for an example notes recent Patek Philippe service and complete accessories, illustrating why service history and completeness are worth checking; it does not establish the condition or value of other examples.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
