Product Overview The Hublot Big Bang chronograph is an iconic bold skeleton sports watch, famous for its avant-garde fusion design combining metal, ceramic and rubber materials. This updated 42mm size optimizes the wearing experience for slimmer wrists, solving the bulky feeling of large-size sports watches. We provide rich color matching options including brushed titanium, rose gold, ceramic bezel, black & blue skeleton dials, to match casual, streetwear and business styling. Premium Grade 5 Lightweight Titanium Case The whole case is crafted from medical-grade 5 titanium metal, far lighter than standard stainless steel, bringing all-day comfortable wear without heavy pressure on the wrist. The case surface adopts multi-directional satin brushing process, matched with fixed screw decorative lugs, presenting tough industrial texture. Integrated ergonomic case contour perfectly fits wrist curves. Transparent Skeleton Dial & Luminous Hands Full open-work skeleton dial exposes the exquisite internal gear structure, layered hollow design creates strong visual depth. Multi-color luminous coated hour & minute hands ensure clear time reading at night. Outer tachymeter scale with precise printing, dual chronograph sub-dials with date window, all scale details are polished and calibrated for neat delicate texture. Core Power: UNICO HUB 1280 Self-Winding Chronograph Movement Customized UNICO HUB 1280 automatic chronograph mechanical movement, fully self-winding via daily wrist swing. All chronograph, date, hour/minute/second functions operate smoothly without jamming, stable long-term timekeeping performance. The transparent case back allows full view of the finely decorated movement. One-Click Quick Release Rubber Strap Exclusive grooved textured natural rubber strap, soft, sweat-resistant and waterproof, suitable for sports and daily scenes. Built-in quick-release spring bar structure, users can replace the strap in one second without tools. Solid metal folding clasp matches the case tone, safe and convenient to wear. Premium Sapphire Crystal Front and back double-sided anti-reflective sapphire crystal, high hardness scratch-resistant material, effectively avoid daily wear and tear. The edge chamfer polishing eliminates light reflection, maintaining clear dial view under all light environments. Product Specifications • Brand: Hublot • Series: Big Bang Chronograph • Case Diameter: 42mm • Case Material: Grade 5 Titanium / Rose Gold Plated Titanium / Ceramic Bezel • Crystal: Double-sided Anti-reflective Sapphire Glass • Movement: UNICO HUB 1280 Self-Winding Automatic Chronograph • Core Functions: Chronograph Timing, Date Display, Luminous Hands, Tachymeter Scale • Strap: Quick Release Grooved Waterproof Rubber Strap • Available Styles: Silver Titanium, Rose Gold Two-Tone, Black Ceramic Bezel, Blue Ceramic Bezel; Black Skeleton Dial / Blue Skeleton Dial Shipping & Support Global tracked shipping for all orders, tracking number will be sent once dispatched. If you need full color catalog, macro detail photos or movement running videos, contact our WhatsApp customer service anytime.
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Compare before you choose
“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 | $995Confirm availability before payment | $595Current 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 | Titanium | 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
- dlz1786361724018
- Case dimensions
- Confirm before order
- Movement
- Automatic mechanical
- Materials
- Titanium
- 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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