The Hublot Big Bang Unico Summer Purple is a 42 mm limited-edition flyback chronograph in purple aluminum, reference 441.UL.5820.NR. Hublot announced 200 pieces in May 2022. Its published specification pairs the automatic HUB1280 UNICO movement with a 72-hour power reserve and 100 m water resistance; those are manufacturer specifications, not independent test results.
What is the Big Bang Unico Summer Purple?
Hublot announced reference 441.UL.5820.NR on 13 May 2022 as part of its “Summer in the City” campaign. The case measures 42 mm and is made of satin-finished purple aluminum; the launch description also refers to anodized and polished finishing. The dial is purple, giving the watch a deliberately monochromatic look.
Hublot described the model as a limited edition of 200 pieces. Its announcement said it was planned to reach the brand’s e-boutique and boutiques from June 2022. That is launch-era information, not confirmation of current inventory. Read Hublot’s announcement and specifications.
Movement and performance specifications
The published caliber is Hublot’s HUB1280 UNICO manufacture movement: an automatic flyback chronograph with a column wheel and a stated 72-hour power reserve. The flyback function lets the wearer reset and restart the chronograph in one operation, rather than stopping, resetting, and starting it in separate steps.
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#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 lists water resistance at 100 m (10 ATM). That rating is a specification, not a guarantee about the condition of an individual watch, especially a pre-owned example; its seals and service history matter. The sapphire crystal has anti-reflective treatment.
Case, bezel, strap and clasp
- Case: 42 mm, satin-finished purple aluminum; Hublot’s launch copy also describes anodized and polished finishing.
- Bezel: Hublot describes purple aluminum with satin and polished finishing. Its English technical table uses an internally inconsistent material phrase, so it does not support calling the bezel stainless steel.
- Dial: purple.
- Crystal: sapphire with anti-reflective treatment.
- Straps: the launch copy describes purple Velcro-fastening fabric and natural rubber options, with the One-Click interchangeable system.
- Clasp: the technical table lists a purple aluminum and titanium deployant buckle.
The launch description and technical table do not conclusively establish the contents of every regional package. Confirm which strap or straps and clasp are included with the specific watch being offered.
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.
Is the Summer Purple still available, and what does it cost?
Hublot’s 2022 announcement does not establish present-day availability or a current price. It also does not confirm warranty status or the contents of any individual resale listing. Check directly with Hublot or a seller for current stock and a dated quote; for a pre-owned watch, evaluate the particular listing rather than assuming that launch details describe its condition.
What to verify before buying reference 441.UL.5820.NR
- Match the reference. Confirm that the listing identifies the watch as 441.UL.5820.NR, not simply as a purple Big Bang.
- Check authenticity documentation. Ask what documentation accompanies the watch and whether it can be verified.
- Establish condition and service history. Request details about wear, repairs, and servicing; the published specifications cannot assess an individual example.
- Confirm what is included. Verify the actual straps, buckle, box, and papers in the sale. Hublot’s launch materials describe strap options but do not prove the contents of a particular listing.
- Get current terms in writing. Confirm the asking price, warranty coverage, return terms, and availability with the seller.
What Hublot said at launch
In the 2022 announcement, Hublot CEO Ricardo Guadalupe framed the watch as the campaign’s colorful culmination and called it “the ultimate fashion statement.” That is promotional launch language, not an independent assessment of comfort, accuracy, durability, or timekeeping performance.
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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.
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.
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.
