Product Overview The Jaeger-LeCoultre Master Q4148420 full calendar moon phase watch is a representative classic of the Master collection, favored by business gentlemen. The watch adopts a unique dome curved dial with 40mm case diameter and 12mm thickness, thin and textured, perfectly matching suits and daily formal outfits. Multiple dial and leather strap color combinations are available to satisfy different matching demands. Exquisite Craft Details 1. Dome Curved DialThe slightly arched dome dial is polished and calibrated repeatedly to restore the classic elegant texture of the original design, with soft layered visual effect. 2. Complete Multi-Function DisplayDouble windows at 12 o’clock display week and month respectively; the subdial at 6 o’clock integrates small seconds and realistic moon phase display; the outer track scale is equipped with date indicator, all practical calendar complications are fully retained. 3. Ergonomic Seamless Watch BuckleIntegrated curved watch buckle without gaps, the radian is refined to fit the wrist closely, comfortable to wear for long hours. 4. Premium Leather StrapGenuine leather strap with neat hand stitching, soft and breathable, matching the minimalist luxury style of the watch. Movement Performance Equipped with high-precision self-winding automatic mechanical movement, after repeated precision calibration and long-time running tests before delivery. The movement runs stably, all calendar and moon phase functions adjust smoothly, with durable daily service performance. Product Specifications • Brand: Jaeger-LeCoultre • Series: Master Collection • Model: Q4148420 • Case Size: 40mm Diameter, 12mm Thickness • Movement: Automatic Mechanical • Core Functions: Week Display, Month Display, Date Track, Moon Phase, Small Seconds Hand • Case Material: Polished Stainless Steel / Rose Gold Plated Steel • Strap: Genuine Leather (Brown, Black, Navy Blue Optional) • Dial Styles: Silver Dial, Dark Blue Dial • Waterproof: Daily life splash-proof (Not suitable for swimming, diving) Shipping & After-sales Support Global tracked shipping for all orders, tracking number provided once dispatched. If you need to check real product photos, color matching details or function introduction, please contact our WhatsApp customer service for consultation.
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“12A” and “7A” are this store’s internal configuration labels, not independent industry standards. Exact parts and test results must be confirmed on the individual QC record.
| Compare | Original retail reference | 12A Premium Build Most detailed | 7A Standard Build |
|---|---|---|---|
| Price | Verify with the brand or an authorised retailer | $1,100Confirm availability before payment | $660Current store price |
| Movement | Brand calibre; verify by reference | Automatic mechanical, selected finish | Reliable automatic movement; exact calibre confirmed before order |
| Materials | Verify on official model specification | Steel | 316L steel or listed material |
| Crystal | Verify on official model specification | Sapphire where listed | Mineral or sapphire; confirm by model |
| Accuracy | Brand specification | Measured during QC; result supplied for the individual watch | Measured during individual QC |
| Water resistance | Official rating, subject to service condition | Splash resistant only unless the individual QC report states otherwise | Splash resistant unless separately tested |
| QC evidence | Authorised retailer documentation | Photos, video and timing result | Photos and functional check |
Specifications
The details that matter
- Reference / SKU
- dlz1787390483358
- Case dimensions
- Confirm before order
- Movement
- Automatic mechanical
- Materials
- Steel
- Water use
- Splash resistant only unless the individual QC report states otherwise
- Package
- Protective travel packaging; presentation box only when listed
Movement information
See what powers the watch
Listed movement: Automatic mechanical.
Before shipping, ask for a clear caseback photo, a short running video and the timing-machine result. Decoration, rotor shape and bridge layout can vary by batch, so the QC image of the individual watch is the controlling reference.
- Movement and function check
- Time/date/chronograph test where applicable
- Timing rate and amplitude photo when available
- Rotor noise and winding feel checked
QC information
Approve the actual watch before dispatch
Your order enters a private QC record after availability is confirmed. The record should show the exact item, not catalogue imagery.
- 01
Order matched
Reference, colour, size and configuration are checked.
- 02
Visual inspection
Dial, hands, case, bracelet, clasp and markings are photographed.
- 03
Functional test
Movement, crown, date and model-specific functions are tested.
- 04
Your approval
QC photos/video are sent for approval before packing and tracking.
Packaging & shipping
A visible order timeline
QC in 2–4 business days; delivery commonly 7–14 business days after approval. Customs processing and remote destinations can add time. A presentation box changes parcel size and may ship separately; it is included only when the product page or QC record says so.
FAQ & verification
Questions to ask before paying
Is this sold as an authentic brand-manufactured watch?
No unless the listing explicitly provides verifiable provenance and authorised documentation. Store grade labels describe configurations; they are not authentication certificates.
How can I verify what I will receive?
Match the QC photos to the order reference. Request a dated video showing the dial, caseback, clasp, serial/marking areas, movement where accessible, and every function. Save the approved QC record.
Can a photo prove authenticity?
No. Photos can help confirm appearance and the shipped item, but authentication requires provenance and qualified physical inspection. Never rely on a logo, serial number or packaging alone.
What should I check in the timing result?
Confirm that the displayed watch is running, then review rate, amplitude and beat error. Results are a snapshot, not a lifetime guarantee, and can change with position, temperature and transport.
Is the watch safe for swimming?
Only if the individual watch has passed an appropriate pressure test and the result is documented. Otherwise treat it as splash resistant and keep it away from showers, pools and seawater.
When will the order ship?
QC in 2–4 business days; delivery commonly 7–14 business days after approval. Tracking is issued after QC approval and dispatch.
Purchase clarity
Nothing important should be assumed.
Confirm the configuration, exact price, included items, QC evidence, delivery estimate and after-sales terms in writing before payment.
Confirm this model
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