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Description
VSF Panerai Submersible QuarantaQuattro Luna Rossa PAM01391
An objectively precise 44mm maritime tool watch that correctly executes the challenging sunburst dial and brushed steel case geometry.
Powered by VSF P.900 Clone Caliber
The movement architecture is engineered to replicate the visual layout of the Panerai P.900 caliber, utilizing customized plates and a signed rotor. Regulation is managed via a traditional index system, providing stable isochronism across varying positions. The date wheel typography and sub-seconds pinion height have been carefully calibrated to match the genuine reference.
Factory regulated to approximately ±4–7 seconds per day, tested across three positions prior to assembly.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Running seconds at 9 o’clock, quickset date at 3 o’clock
- ✅ Winding Direction: Unidirectional rotor winding
Technical Specifications
The 44mm case measures a verified 15.4mm in thickness. The brushed finishing is uniform, with sharp transitions at the lug bevels and crown guard assembly.
Deviating from traditional sandwich dial construction, this reference utilizes applied luminous dots with precise Super-LumiNova application and high-contrast red accents.
Unidirectional 60-click mechanism featuring raised polished markers and a luminous pip at 12 o’clock, offering tactile and secure ratchet feedback.
Fabric and rubber hybrid strap with the Luna Rossa red stripe, secured by a brushed 316L tang buckle with deep, accurate Panerai engraving.
Why VSF for This Reference?
Many collectors ask: “Why not ZF?”
VSF maintains a distinct advantage in crown guard lever tension and dial color accuracy. The sunburst blue dial on the VSF iteration avoids the overly purple hue present in competing batches, while the roller bearing in the crown guard provides a crisper, more genuine tactile snap.
Full Disclosure: The P.900 clone movement exhibits slightly more rotor noise during aggressive wrist movement compared to the genuine caliber.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | PAM01391 |
| FACTORY / VERSION | VSF Edition |
| MOVEMENT | VSF P.900 Clone |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 166.6g | 15.4mm |
| CRYSTAL & LUME | Sapphire | Super-LumiNova |
| DIMENSIONS | 44mm × 53.5mm × 15.4mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE | 50m stated — professional pressure test recommended before swimming |
Collector Q&A
Q: How accurate is the sunburst blue dial on the VSF PAM01391 compared to genuine?
A: VSF has achieved a highly accurate sunburst effect that shifts dynamically under different lighting conditions, successfully avoiding the overly purple or flat hues seen in earlier iterations from competing factories.
Q: Does the crown guard lever have the correct snap and tension?
A: Yes, the VSF crown guard mechanism features a precision-milled roller bearing, providing crisp, tactile feedback and correct tension when securing the crown, closely mimicking genuine tolerances.
Q: Are the strap pins compatible with genuine Panerai straps?
A: This model features the correct lug hole diameter and traditional screwed lug bars, allowing seamless compatibility with genuine or aftermarket 24mm Panerai straps.
Q: What is a known limitation of the VSF P.900 clone movement in this replica?
A: The primary limitation is rotor noise. The unidirectional winding mechanism of the clone caliber is slightly louder than the genuine movement when the wrist is shaken aggressively, though this can be mitigated with a light application of Moebius 9010 oil by a watchsmith.
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