Hublot announced Petrol Blue and Mint Green ceramic editions of the Big Bang Unico 42 mm and Big Bang One Click 33 mm on 1 April 2025. The Unico is the larger open-dial flyback chronograph; the One Click pairs a smaller solid dial with a diamond-set steel bezel. Hublot described both colors as seasonal creations and named its boutiques and authorized retailers as sales channels.
What Hublot announced
The 1 April 2025 Geneva announcement introduced two colors across two Big Bang model families: Petrol Blue and Mint Green, each offered in the Unico at 42 mm and the One Click at 33 mm. Hublot presented the colors as unisex in appeal; that is the brand’s positioning, not a universal fit or style recommendation.
Hublot describes Petrol Blue as deep and warm with a hint of green, and Mint Green as a cool, bright pastel with a hint of blue. Those are the manufacturer’s descriptions of the finishes. Read Hublot’s launch announcement.
How the Unico and One Click differ
| Feature | Big Bang Unico | Big Bang One Click |
|---|---|---|
| Case diameter | 42 mm | 33 mm |
| Dial | Open, skeleton dial | Solid dial |
| Movement or complication in the announcement | In-house automatic chronograph; the Petrol Blue product page specifies a flyback chronograph | Not stated in the launch announcement |
| Bezel | Not specified in the launch announcement | Steel set with diamonds |
Hublot said the ceramic release marked the first time the Big Bang One Click 33 mm was made in ceramic. The smaller One Click is not simply a scaled-down Unico: the dial treatment, bezel and stated complication differ.
#1 Best Overall
- COMPATIBLE REPLACEMENT STRAP – Designed for compatible use with Hublot. Please verify your watch model and 29x22mm before purchase.
- 29X22MM SIZE FORMAT – Built to match the strap dimensions shown in the title for secure attachment and proper everyday fit.
- BLACK RUBBER – Flexible, durable, and comfortable for daily wear, with a sporty look that refreshes your watch.
- REPLACEMENT SOLUTION – Ideal for refreshing a worn strap while maintaining a clean and updated look on your watch.
- STRAP ONLY – Buckle, clasp, and mounting hardware are not included unless otherwise stated. Please reuse your existing hardware if needed.
Hublot Big Bang Unico Petrol Blue Ceramic 42 mm: confirmed specifications
Hublot’s official product page identifies the Petrol Blue Unico as reference 441.ES.5121.RX. Its published specifications are specific to this Petrol Blue Unico; they should not be assumed to apply to the Mint Green Unico or either One Click color.
| Specification | Hublot-listed detail |
|---|---|
| Case and bezel | Petrol Blue ceramic |
| Diameter | 42 mm |
| Water resistance | 100 m / 10 ATM |
| Crystal | Sapphire with anti-reflective treatment |
| Dial | Petrol Blue skeleton |
| Movement | HUB1280 UNICO manufacture self-winding flyback chronograph movement with column wheel |
| Power reserve | Approximately 72 hours |
| Strap | Petrol Blue lined rubber |
| Clasp | Titanium deployant buckle |
The product page’s general UNICO movement description mentions 354 components; Hublot does not separately identify that count as a variant-specific figure. See the official Petrol Blue Unico product page and specifications.
Rank #2
- COMPATIBLE REPLACEMENT STRAP – Designed for compatible use with Hublot. Please verify your watch model and 30x22mm before purchase.
- 30X22MM SIZE FORMAT – Built to match the strap dimensions shown in the title for secure attachment and proper everyday fit.
- BLACK RUBBER – Flexible, durable, and comfortable for daily wear, with a sporty look that refreshes your watch.
- REPLACEMENT SOLUTION – Ideal for refreshing a worn strap while maintaining a clean and updated look on your watch.
- STRAP ONLY – Buckle, clasp, and mounting hardware are not included unless otherwise stated. Please reuse your existing hardware if needed.
Matching ceramic straps and changing them
Hublot says the Petrol Blue and Mint Green rubber straps match their respective ceramic cases. Both model families use a quick strap-change system integrated into the case. The launch announcement does not list strap part numbers or establish compatibility with third-party straps, so check a strap’s fit with Hublot or an authorized retailer before buying.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Availability, pricing and warranty
Hublot called the colors seasonal creations “limited in time” and said the watches were available through Hublot boutiques and authorized retailers. That statement describes the brand’s launch positioning; it does not establish present-day stock for a specific model, color or country. The cited pages do not provide a matched price comparison. Check local sellers for current availability and pricing.
Recommended Free Tools
Rank #3
- COMPATIBLE REPLACEMENT STRAP – Designed for compatible use with Hublot. Please verify your watch model and the size listed in the title before purchase.
- THE SIZE LISTED IN THE TITLE FIT – Crafted for a secure connection and stable daily wear when matched to the correct watch model.
- BLACK LEATHER – Designed to provide a refined look with comfortable wear for everyday or dress use.
- REPLACEMENT SOLUTION – Ideal for refreshing a worn strap while maintaining a clean and updated look on your watch.
- STRAP ONLY – Buckle, clasp, and mounting hardware are not included unless otherwise stated. Please reuse your existing hardware if needed.
Hublot’s Petrol Blue Unico page, localized to the Philippines and accessed in 2026, says watches purchased from 1 January 2026 benefit from a five-year international warranty. It also describes a possible additional five years through Hublotista registration, subject to conditions. Confirm local terms and a particular watch’s eligibility with Hublot before relying on that coverage. Check Hublot’s product-page warranty information.
Quick Recap
Best Value
- Made of non-allergic natural resin, waterproof, soft, light, durable, comfortable to wear
- It is suitable for Hublot Big Bang 25 * 19 * 22mm interface watch band , not for other watches
- It is very important to choose the correct model. To avoid the trouble caused by the return and exchange of goods, if you have any questions about the model and size of the watch, please feel free to contact us
- Package included: 1 * Rubber strap (without metal buckle), 1 * tool kit, easy replacement with our free tools. The watch has a new look! It is not the original and is a good substitute
Rank #4
- Compatible Models: 44.5mm Hublot Big Bang Luna Rossa 301.CM.131.RX.LUN06 , 301-CM-131-RX-LUN06, 301/CM/131/RX/LUN06, 301CM131RXLUN06 watches which has 25mm at lugs and 22mm at the buckle
- Detailed Sizes: Lug Size: 25mm; Lug Smaller Size: 19mm; Width at Buckle: 22mm; Length: 100/80mm
- High-quality rubber and stainless steel watch band & clasp.
- Package Including: 1 set (2 rubber strap) And 1 Clasp
- Your Satisfaction Is Our Highest Priority. Pls Contact Us If You Have Any Questions, We Will Try Our Best To Serve For You.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
