Summary of Key Points about the Modified Patek Philippe Nautilus (Model 5980R – Rose Gold Chronograph)
Here are the essential features of this top‑tier modified watch:
1. Model & Material
- Model: Patek Philippe 5980R Nautilus (rose gold chronograph)
- All visible rose gold parts (case, middle case, caseback, strap, buckle) are made from real AU750 18K rose gold – a precious metal
2. Weight
- Total weight: 237 grams – exactly matches the genuine
- Only real precious metal can achieve such weight
- A professional appraisal certificate can be issued for the 18K gold watch
3. Movement – Genuine Patek 28‑520 (CH 28‑520 C)
- Uses an original genuine 28‑520 movement (reference “two eight five two zero” – Patek’s self‑winding chronograph caliber)
- Truly non‑regulated (non‑card) structure
- Bridge finishing: Polishing and wire drawing are very good
- Why use a genuine movement? – Only with a genuine movement can all chronograph functions be achieved correctly
4. Chronograph Functions – Demonstrated
- 6 o’clock area: Minute hand and hour hand (sub‑dials)
- Large central hand: Chronograph seconds hand
- Operation: Press top button to start timing; large seconds hand moves; when it completes one rotation, a small hand (minute counter) jumps
- Reset: Press pause (top button again), then press bottom button to reset
- All functions are completely consistent with the original
5. Dial & Hands – Aftermarket (Upgradeable)
- Surface accessories are currently aftermarket (“Dam配件” – top‑tier replacement parts developed with original data)
- Upgrade option: With sufficient budget, can use genuine dial and genuine hands
- If upgraded with genuine dial/hands + genuine movement + custom 18K gold case/strap, then without professional testing there will be no flaws
6. Case Craftsmanship – CNC Original Data
- Developed with original data
- Brushing and polishing: Both very well executed
- Thickness: Matches genuine
- Nautilus beak (side profile): Opening arc handled very well
7. Caseback & Precious Metal Hallmarks
- Hand‑chiseled engravings: AU750, scales (balance), PVC, dog head – very, very clear
- Back of strap: Engraved code also very clear
8. Buckle / Clasp
- Calatrava logo – very, very clear – a sign of a good gold case product
- Inside the buckle: PP full spelling (Patek Philippe) + precious metal hallmarks on the back – all clear
9. Strap Details
- Raised middle bead – correct feeling
- Overall grinding, polishing, and detailing are properly handled – no embarrassment when wearing
10. Value Proposition
- Secondary market price of genuine 5980R: extremely high (hundreds of thousands of yuan)
- Through modification/customization, you spend less money to achieve more
- Using genuine movement + genuine accessories (if upgraded) + real gold case – wearing it yourself already saves money – that is the purpose and significance
11. Key Quality Checklist for PP 5980R
| Component | What to Look For |
|---|---|
| Material | Real AU750 18K rose gold (all visible parts) |
| Weight | ~237g |
| Movement | Genuine Patek 28‑520 (self‑winding chronograph) – non‑regulated, fine finishing |
| Chronograph | Functions correctly: start, stop, reset; sub‑dial minute/hour totalizers work |
| Case finishing | Delicate brushing and polishing; correct thickness; correct beak opening arc |
| Dial/hands | Aftermarket (top‑tier) or upgrade to genuine – correct color, radial pattern, 3D hands |
| Hallmarks (caseback) | AU750, scales, PVC, dog head – hand‑chiseled, deep, clear |
| Buckle | Calatrava logo very clear; inside: PP spelling + precious metal marks |
| Strap | Raised middle bead; proper polishing; comfortable feel |
Concluding Comment
This video covers the PP 5980R Nautilus – the rose gold chronograph version of Patek’s iconic sports watch. Unlike the time‑only or moon‑phase models, the 5980 features a complex self‑winding chronograph movement (caliber CH 28‑520 C) with a column wheel and vertical clutch. Replicating this movement’s appearance and function is extremely difficult, which is why Bozwatch recommends the ultimate solution: a genuine Patek 28‑520 movement.
Strengths:
- Real 18K rose gold (237g) – correct weight, color, and material. The weight alone (nearly a quarter kilogram) is a major authenticity marker.
- Genuine Patek 28‑520 movement – this is the heart of the 5980R. It provides the correct non‑regulated balance, high‑quality bridge finishing, and – most importantly – fully functional chronograph with start/stop/reset and proper sub‑dial totalizers. A clone movement cannot replicate this accurately.
- CNC original data case – correct brushing, polishing, thickness, and beak profile (side opening arc).
- Hand‑chiseled hallmarks – AU750, scales, PVC, dog head on caseback and buckle – deep and clear.
- Calatrava logo on buckle – very clear, a hallmark of a good gold case.
- Raised middle bead on strap – correct tactile detail.
- Upgrade path – dial and hands can be upgraded to genuine for a near‑perfect front face.
- Value proposition – genuine 5980R costs hundreds of thousands of yuan. This build (real gold + genuine movement + custom case/strap) costs significantly less but still substantial. The genuine movement alone is a major investment.
Final verdict: The PP 5980R is one of the most complex Nautilus models to replicate due to its integrated chronograph movement. This build takes the only reliable approach to achieving full functionality and visual authenticity under a transparent caseback: install a genuine Patek 28‑520 movement. The 18K rose gold case and strap provide correct weight (237g) and color, and the CNC original data case ensures correct proportions and finishing. The aftermarket dial and hands are high‑quality, but upgrading to genuine would make the front face flawless.
For a collector who wants a 5980R Nautilus – a rose gold chronograph that is rare and expensive in the genuine market – this modified watch offers a compelling alternative. The genuine movement guarantees perfect chronograph function and correct movement appearance. The solid gold case guarantees correct heft. The only remaining tells are the aftermarket dial/hands (upgradeable) and the non‑original case/bracelet engravings (which are still very well done). If the buyer has the budget and accepts the nature of a “genuine movement in a custom gold case,” this is arguably the best 5980R modification possible. As always, independent verification of the movement’s authenticity (watchmaker inspection) and gold purity (XRF) is strongly recommended. Bozhong’s demonstration of the chronograph functions and the emphasis on weight, hallmarks, and beak profile provide a solid buyer’s checklist.
Hello everyone, this is Bozwatch Reviews.
Every watch is a work of art, a testament to time, and I am a fanatic who is obsessed with them. I also hope that watch enthusiasts can avoid pitfalls and find their own “Bole” (discerning patron).
Later, some fans sent me private messages wanting to know about the best modified and upgraded PP 5980R Nautilus on the market. They asked me to make a video with them to authenticate it. Well, today it’s here.
This watch is a PP 5980R with the top configuration.
Before we play with the 5980 Nautilus, we must first understand what material it is made of, what its weight is like, what functions its movement has, and what its thickness is. After we understand these clearly, you can enjoy it. If your friends ask you questions, you’ll at least be able to answer them.
This watch is made of real precious metal – AU750 18K rose gold. Its case, middle case, caseback, strap, and buckle – all the rose gold parts that you can see with your naked eye – are made of precious metal.
As usual, let’s weigh it. Let me show you how much the entire watch weighs. You can see on the scale – 237 grams. This weight is exactly the same as the original. Only by using real precious metal can you achieve such weight.
When a gold watch is made of precious metals, it can also obtain a professional appraisal certificate. For a watch made of precious metals, you can easily tell from its appearance, its color, and its weight that it’s consistent with the original.
This watch is very powerful – it uses an original genuine 28520 movement to make it. Let’s take a look together. This is the craftsmanship of a genuine movement. Such genuine movements can be sent to a domestic authoritative appraisal agency to issue a professional inspection report. It has a true free‑sprung (non‑caliber) structure. The polishing and brushing on its bridges are very good. Its rotor is also 18K gold.
Why use a genuine movement? Because only by using a genuine movement can you achieve all the chronograph functions.
Let’s look at the 6 o’clock area – those are the minute hand and hour hand. The large central hand is the chronograph seconds hand. Let me demonstrate: after I press the top pusher, the chronograph starts. See? This is the large seconds hand for timing. When the chronograph seconds hand completes one rotation, a small sub‑dial hand will jump – there is a minute counter and an hour counter. See the small hands inside? This function – using a genuine movement – can synchronize perfectly with the original.
How do we reset it? Press the top pusher again to pause, then press the bottom pusher to reset. All functions are completely consistent with the original.
The surface accessories (dial, hands) are currently made by us – high‑quality aftermarket parts. If you have enough budget, you can also use genuine dials and genuine hands to upgrade. If you upgrade like that – except for the case and strap which are custom‑made – all other accessories would be original. Without sending it to a professional agency for testing, there would be no flaws.
The secondary market price of the 5980R is as high as several hundred thousand yuan. Through our modification and customization, you can spend less money to achieve more. Using a genuine movement and genuine accessories already helps you save money – that’s the purpose and significance of modifying it.
For this watch, the case is developed and made using original data. Whether it’s the brushing or the polished surfaces – the finishing is excellent. Its thickness matches the genuine. Look at the side of this Nautilus – the beak‑shaped opening is also very well executed.
Including the precious metal engravings on the caseback – the AU750 mark, the scale, the crown, and the dog head – all are hand‑chiseled. The engraved codes on the back of the strap are very, very clear.
Now look at the buckle. The Calatrava logo is very, very clear. See? This is a good gold case product. This level of craftsmanship – including the engravings inside, such as the full spelling of Patek Philippe and the precious metal hallmarks on the back – do you see it?
For a gold case product like this, it needs to fully restore the original texture. From the details – the brushing, the polishing, the raised center bead feel, the engraving process – if everything is handled properly, you won’t feel embarrassed when wearing this watch.
When choosing the PP 5980R, you must pay attention to these aspects, okay?
This is a PP 5980R – English rose gold – made of 18K solid gold, using a genuine double‑P 28520 movement to upgrade the entire watch.
If you like this watch, you can contact Bozwatch. If you like Bozwatch’s videos, please double‑tap to like and follow. See you next time.
