ZF Factory Breguet Reine de Naples 36.5 × 28.45mm Automatic Watch
The ZF Factory Breguet Reine de Naples combines its distinctive 36.5 × 28.45mm oval case with a crystal-set exterior, coin-edge case detailing and a 6T28-based automatic mechanical movement.
This configuration features approximately 117 Swarovski crystals around the bezel and case, with a supplied total weight of approximately 0.99 carats. A separate pear-shaped decorative crystal is positioned at the crown, with a supplied weight of approximately 0.26 carats.
A domed crystal, silk-covered lambskin strap and Breguet-style folding clasp complete the exterior configuration.
36.5 × 28.45mm Oval Case
The watch features a distinctive 36.5 × 28.45mm oval case.
Rather than using a conventional round profile, the vertically elongated case creates the recognizable proportions associated with the Reine de Naples collection.
The relatively narrow 28.45mm width helps balance the taller case structure, while the curved exterior transitions toward the strap at the upper and lower sections.
This unusual geometry gives the watch a distinctly different wrist presence from conventional round dress watches.
Coin-Edge Case Detailing
The exterior edge incorporates traditional coin-edge detailing.
Fine repeating grooves introduce additional texture around the case and provide contrast against the smoother surrounding surfaces.
This detail also complements the classical design language of the watch without requiring additional decorative elements across the entire case.
The exact underlying case material has not been specified, so no unconfirmed precious-metal construction is claimed.
Crystal-Set Bezel and Case
The bezel and surrounding case incorporate approximately 117 Swarovski crystals according to the supplied specification.
Their combined supplied weight is approximately 0.99 carats.
The crystal setting follows the curved shape of the oval case, introducing reflective detailing around the perimeter of the dial.
These elements are described specifically as Swarovski crystals rather than natural diamonds because that is the material identified in the supplied information.
Pear-Shaped Crown Crystal
The crown incorporates a separate pear-shaped decorative crystal.
Its supplied weight is approximately 0.26 carats.
Positioning the crystal directly on the crown creates an additional decorative focal point along the side of the case and complements the crystal setting surrounding the bezel.
No claim regarding natural diamond content is made.
6T28-Based Automatic Movement
This ZF Factory Reine de Naples uses a Citizen 6T28-based automatic mechanical movement configured with visual architecture styled after the Breguet Cal.537/3.
The movement architecture has been revised to create a slimmer overall construction while maintaining automatic winding.
Normal wrist movement activates the automatic winding system and contributes to replenishing the movement’s stored energy during regular wear.
Because the underlying movement is identified as a Citizen 6T28-based construction, this page does not describe it as an original Breguet Cal.537/3 movement.
Revised Movement Architecture
A notable technical characteristic of this configuration is the revised movement structure.
The internal architecture has been adjusted to reduce unnecessary thickness and provide a slimmer relationship between the movement and case.
This change is particularly relevant for the Reine de Naples design because its elongated oval case places greater visual emphasis on case proportions when viewed from the side.
No exact case thickness was provided, so an unconfirmed measurement is not added.
Domed Crystal
The watch features a domed crystal following the curved architecture of the case.
Viewed from the side, the curvature creates additional optical depth across the dial and surrounding crystal-set exterior.
The domed construction also contributes to the distinctive profile of the watch rather than presenting a completely flat upper surface.
The exact crystal material was not specified in the supplied information, so it is not automatically described as sapphire.
Weighted Case Construction
The supplied configuration incorporates additional internal case weighting.
This changes the overall mass and wrist feel without requiring visible changes to the exterior design.
Because no actual measured weight has been supplied, this page does not claim an exact gram value or state that its weight is identical to another watch.
A measured QC weight can be added later if an individual watch is tested before shipment.
Silk-Covered Lambskin Strap
The watch is paired with a silk-covered lambskin strap.
The construction combines a soft leather foundation with a textile exterior, complementing the dress-oriented character of the oval case and crystal-set details.
Because both silk and leather can be affected by moisture, cosmetics and perspiration, prolonged exposure to water should be avoided.
The strap should be cleaned carefully without soaking or aggressive chemical products.
Breguet-Style Folding Clasp
The strap is secured using a Breguet-style folding clasp.
The folding construction keeps the two strap sections connected when opened and provides a compact closure suited to the relatively narrow strap proportions.
Regular inspection of the clasp and strap attachment points is recommended, particularly where the leather and textile components experience repeated bending.
Product Specifications
Item Specification
Factory ZF Factory
Brand Breguet
Collection Reine de Naples
Case Size 36.5 × 28.45mm
Case Shape Oval
Case Detail Coin-Edge Exterior
Movement Citizen 6T28-Based Automatic
Movement Styling Cal.537/3-Style Architecture
Winding Automatic
Bezel / Case Setting Approx. 117 Swarovski Crystals
Supplied Crystal Weight Approx. 0.99 ct
Crown Pear-Shaped Decorative Crystal
Crown Crystal Weight Approx. 0.26 ct
Crystal Domed
Case Construction Internally Weighted
Strap Silk-Covered Lambskin
Clasp Breguet-Style Folding Clasp
Wearing and Care Advice
Clean the case and crystal-set exterior carefully using a clean, soft cloth. Avoid abrasive polishing compounds around the decorative crystal settings.
The pear-shaped crown crystal should be protected from hard impacts and unnecessary pressure.
Keep the silk-covered lambskin strap away from prolonged water exposure, perfumes, cosmetics and aggressive cleaning products.
Protect the 6T28-based automatic movement from heavy impacts and strong magnetic fields.
No confirmed water-resistance specification was provided, so intentional water exposure is not recommended without appropriate pressure testing.
Frequently Asked Questions
What size is the ZF Factory Breguet Reine de Naples?
The supplied case dimensions are 36.5 × 28.45mm.
What movement does the watch use?
It uses a Citizen 6T28-based automatic mechanical movement with architecture styled after the Breguet Cal.537/3.
How many decorative crystals are used around the case?
The supplied specification lists approximately 117 Swarovski crystals, with a combined weight of approximately 0.99 carats.
What is fitted to the crown?
The crown incorporates a pear-shaped decorative crystal, specified at approximately 0.26 carats.
Is the case weighted?
Yes. The supplied configuration incorporates internal case weighting, although an exact finished weight has not been provided.
What type of strap does it use?
The watch features a silk-covered lambskin strap with a Breguet-style folding clasp
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