Summary of Key Points about the Modified Patek Philippe Nautilus (Model 5712R – Genuine Movement & Parts)
Based on the video transcript (focusing on the PP 5712R Nautilus with genuine movement and genuine dial/hands), here are the essential features of this top‑tier custom build:
1. Model & Configuration
- Model: Patek Philippe 5712R Nautilus (rose gold)
- Genuine original dial
- Genuine original hands
- Genuine original Patek Philippe 240 movement
- Case and strap are custom‑made later – developed with original data, made of 18K solid gold
2. Overall Authenticity Claim
- Worn in social situations (without sending to professional testing), there will be no flaws at all
3. Purpose of Modified/Custom Watches
- Spend less money to achieve more
- High budget: Use original genuine accessories + original genuine movement
- Lower budget: Use aftermarket replacement parts or replacement movement (still OK)
4. Genuine Dial & Hands
- Original genuine dial and hands – enjoy the texture of authentic accessories
- Quality indicators:
- Correct color
- Correct font
- Scale bar nails (hour markers) – correct three‑dimensionality
- Hands – 3D effect, central axis very full
- These original accessories can be tested by domestic authoritative testing agencies – “fake pays ten” (guarantee)
5. Genuine Patek 240 Movement – Key Features
- Non‑regulated (uncalibrated) structure – balance wheel has counterweights
- Bridge engravings: Oxford words (Geneva stripes), gold sleeve, C port (correct finish)
- Automatic rotor: Real 22K gold rotor
- Genuine movement can also be authenticated by domestic testing agencies
6. Why Use the Genuine Movement for 5712?
- The 5712 is a multi‑function watch:
- 10 o’clock – power reserve display
- 7 o’clock – moon phase
- Outer dial – calendar function
- 5 o’clock – small seconds hand
- Using the genuine movement ensures all functions synchronize exactly with the genuine watch
- Thickness: ~8.52 mm – completely consistent with genuine
7. Case Craftsmanship – 18K Solid Gold (Original Data)
- Developed with original data – scanned from genuine
- Finishing quality:
- Brushing (wire drawing) – very fine
- Polished surface treatment – very fine
- Chamfering and polishing – very fine
- Crown height: Only slightly higher than the middle case – some gold case factories make the crown too long (incorrect)
- Beak shell (side middle case): Must be a sharp, three‑dimensional beak – developed from 3C original data. This is very important.
8. Strap / Bracelet Quality Indicators
- Brushing and polishing treatment – must be correct
- Middle bead protrusion: Should be three‑dimensional – an indicator of a good gold case
9. New Fine‑Tuning Buckle (Clasp)
- Can be adjusted slightly according to the wearer’s movement
- Has a gear on the back – press to pull out, press again to lock
- Calatrava logo: CNC carved – very clear and three‑dimensional
10. Engravings & Hallmarks (Quality Measures)
- Back of buckle / caseback engravings:
- AU750
- Scales
- PVC (assay mark)
- Dog head
- These must be three‑dimensional and perfect – a measure of gold case quality
11. Key Quality Checklist for PP 5712R (Genuine Parts + Gold Case)
| Component | What to Look For |
|---|---|
| Dial | Genuine – correct color, font, 3D markers |
| Hands | Genuine – 3D, full central axis |
| Movement | Genuine Patek 240 – non‑regulated, balance counterweights, 22K gold rotor, engraved bridges |
| Case material | 18K solid gold (original data) |
| Case finishing | Fine brushing, polishing, chamfering |
| Crown height | Slightly higher than middle case (not too long) |
| Beak shape | Sharp, 3D beak on side middle case |
| Strap middle bead | Protrudes three‑dimensionally |
| Buckle | Fine‑adjustment butterfly; CNC‑carved Calatrava logo |
| Hallmarks | AU750, scales, PVC, dog head – deep, 3D, perfect |
| Thickness | ~8.52mm |
Concluding Comment
This eighteenth video describes the absolute ultimate modified Patek Philippe Nautilus 5712R – a watch that combines a genuine Patek 240 movement, genuine dial, and genuine hands with a custom 18K solid gold case and strap developed from original data. This is not a replica in the traditional sense; it is a “franken” build where the core watchmaking components are authentic Patek parts, housed in a high‑quality aftermarket gold case and bracelet.
Strengths:
- Genuine Patek 240 movement – authentic non‑regulated balance with counterweights, 22K gold rotor, proper Geneva stripes and engravings. This movement is the heart of the watch and is indistinguishable from any other genuine 5712 when viewed through the caseback.
- Genuine dial and hands – correct color, fonts, 3D markers, and central axis. These are the most visible parts on the front.
- 18K solid gold case and strap – developed from 3C original data, with correct thickness (8.52mm), crown height, sharp beak shape, fine brushing/polishing, and proper chamfering.
- Fine‑adjustment butterfly buckle – with CNC‑carved Calatrava logo and deep, three‑dimensional hallmarks (AU750, scales, PVC, dog head). This matches the latest Patek clasp technology.
- Authentication possible – genuine parts can be tested by domestic authoritative agencies with a “fake pays ten” guarantee.
- Flawless in social wear – as long as the watch is not sent to a professional lab, it will pass casual inspection.
Final verdict: For the collector who has the budget and wants a 5712R Nautilus that is as close to genuine as physically possible without buying a complete authentic watch, this build is the holy grail. The genuine movement guarantees correct functionality (power reserve, moon phase, calendar, seconds) and perfect thickness. The genuine dial and hands ensure the front looks exactly right. The custom 18K gold case and strap, while aftermarket, are made to original data with attention to every detail – beak shape, crown height, brushing, hallmarks, and the fine‑adjustment buckle.
The only remaining tells would be microscopic differences in caseback engravings or clasp finishing compared to a genuine Patek case – things that virtually no one in a social setting would ever notice. If the buyer can afford this level of customization and accepts that it is a “genuine movement inside a high‑quality aftermarket case,” this is arguably the best modified Patek Philippe possible. Bozwatch’s emphasis on the sharp beak shell, correct crown height, fine‑adjustment buckle, and deep hallmarks provides a clear checklist for evaluating the gold case quality. As always, independent verification of the movement’s authenticity (e.g., by a watchmaker) is strongly recommended before purchase.
Hello everyone, this is Bozwatch.
Every watch is a work of art, a testament to time, and I am a fanatic who is obsessed with them. I also hope to help watch enthusiasts avoid pitfalls – I have found my own mentor.
Following a fan’s request, he asked me to make a video about customizing and upgrading the PP 5712R Nautilus, and wanted Bozwatch to share it with him. I bought this watch myself from a merchant – a custom‑built top‑of‑the‑line 5712R Nautilus.
According to the merchant, this watch uses an original genuine dial, original genuine hands, and an original double‑P 240 movement to modify and upgrade the entire watch. Its case and strap are custom‑made later – developed with original data – an 18K solid gold case and strap.
To put it this way: as long as you wear this watch out, and you don’t send it to a professional agency for testing, you can wear it normally in social situations – there will be no flaws at all.
In fact, what is the purpose of modified and customized watches? It’s to spend less money and achieve more. If you have enough budget, you can use original genuine accessories and an original genuine movement for upgrading and customization. If your budget is tighter, you can also use our aftermarket parts or a replacement movement for later upgrades – that’s also fine.
This watch has an original genuine dial and hands. You can appreciate the texture of original accessories – whether it’s the color, the fonts, the hour markers, or the three‑dimensionality – all are excellent. These original accessories can be tested by domestic authoritative testing agencies – fake one pays ten.
The hands – their three‑dimensionality and the central axis effect – are very full. All of this craftsmanship is consistent with the genuine.
Now the movement on the back – it is an original genuine double‑P 240 movement. What are the characteristics of the original 240 movement? As we’ve always said, it must have a free‑sprung (non‑caliber) structure. The balance wheel has counterweights. The bridges have Geneva stripes (Côtes de Genève), gold chatons, and C‑shaped spring bars. All these processes need to meet genuine standards.
For the original genuine movement, the rotor is also a real 22K gold automatic rotor. Whether it’s the movement or the accessories mentioned above, you can send them to a more authoritative domestic testing agency for a second inspection.
Why use an original movement for modification and upgrading? Because the 5712 is a multi‑function watch:
- 10 o’clock – power reserve display
- 7 o’clock – moon phase
- Outer dial – date function (calendar)
- 5 o’clock – small seconds hand
Using the original movement, all functions are completely synchronized with the genuine, and the thickness is exactly the same – about 8.52 mm, perfectly matching the genuine.
For this watch, the case, as I mentioned earlier, is developed with original data. As you can see, whether it’s the brushing, the polished surface treatment, or the chamfered and polished edges – the finishing is very, very fine.
Look at the PP crown – the crown is only slightly higher than the middle case. Some gold case factories make the crown too long – that is completely wrong. For the Nautilus, whether the side middle case has a proper beak shape is also very important. Our middle case is developed based on 3C original data – a very obvious, three‑dimensional, sharp beak case. See it?
Now the strap – the brushing, the polished surface treatment, and whether the treatment is properly done. Whether the raised center links are three‑dimensional – these are all indicators of a high‑quality gold case and very obvious craftsmanship requirements.
This watch has a new clasp – it can be adjusted slightly according to the wearer’s movement. There is a gear on the back – you press it, then pull it out, and press again to release. See? This kind of fine‑adjustment clasp.
Look at the Calatrava logo on the clasp – it is carved and customized after CNC machining – very clear and three‑dimensional. Very, very good.
Let me also show you the engravings on the back – such as the AU750 mark, scale, crown, and dog head. Whether the lettering is three‑dimensional and perfect is also a measure of a good gold case – something you need to pay attention to.
This is the PP 5712R Nautilus – a top‑of‑the‑line custom‑made and modified watch. It uses an original genuine dial, original genuine hands, and an original genuine double‑P 240 movement for modification and upgrading.
If you like this watch, you can contact Bozwatch. Let’s discuss together how to enjoy custom and modified watches.
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