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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →The Hublot Big Bang Unico 45 Sky Blue is a 2020 limited edition of 100 watches, built around a 45 mm light-blue ceramic case, a skeletonized dial and an automatic flyback chronograph. Its reported U.S. launch price was $21,500 in 2020; that historical list price is not a current valuation.
What is the Big Bang Unico 45 Sky Blue?
Introduced in 2020, the Sky Blue is a limited colorway in Hublot’s Big Bang Unico 45 line. Its defining combination is a large 45 mm case in light-blue ceramic with white accents, an openworked dial and the Unico flyback chronograph. Watchonista’s July 21, 2020 launch coverage and Chrono24’s model overview both report a production limit of 100 pieces.
Specifications
| Specification | Reported details |
|---|---|
| Case | 45 mm; light-blue ceramic with white accents, per 2020 launch coverage. |
| Dial | Skeletonized, with rhodium-plated, luminescent indications, per Watchonista’s 2020 report. |
| Movement | MHUB1242 UNICO manufacture self-winding column-wheel flyback chronograph, as named by Watchonista in 2020. |
| Power reserve | 72 hours, as reported by Watchonista in 2020. |
| Water resistance | 10 ATM / 100 m, as reported by Watchonista in 2020; Chrono24 also lists 100 m. |
| Edition size | 100 watches, according to Watchonista’s 2020 coverage and Chrono24’s model guide. |
| Strap | White textile strap shown in launch imagery; a sky-blue-and-white rubber strap with titanium deployant clasp was described as an option by Watchonista. |
How the flyback chronograph works
A flyback chronograph lets the wearer reset and restart a running chronograph with one press, rather than stopping it first and then resetting it. The function is useful for timing consecutive intervals. Watchonista identifies this edition’s movement as the MHUB1242 UNICO, a self-winding, column-wheel flyback chronograph. Caliber naming can vary across Big Bang Unico generations, so this designation should be understood as the one reported specifically for the Sky Blue launch, not generalized to every Unico model.
Launch price and present-day availability
Watchonista and Chrono24 report a U.S. launch list price of $21,500 in 2020. That figure is historical context only: it does not establish what an example should cost now. A July 2026 article by Gia Bảo likewise cautions against using the launch figure as a present-day valuation. Current asking prices can differ from completed-sale prices, and a defensible estimate would need recent sales data plus the watch’s condition, provenance and market geography.
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#1 Best Overall
- Made of non-allergic natural resin, waterproof, soft, light, durable, comfortable to wear,Surface linear texture design, fashionable and beautiful
- 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
Chrono24 has an exact-model page that includes a listing. A marketplace listing is not evidence of authorized-dealer status, universal availability or a reliable market range; inventory and asking prices can change.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What makes this edition distinctive?
The Sky Blue’s identity comes from the pairing of a vividly colored ceramic case with the exposed mechanics of the skeletonized dial, rather than from a different case size or a claim of improved performance. The 45 mm format, flyback function and limited 100-piece run are the clearest practical and collectible details to weigh. The available launch reporting does not establish comparative accuracy, comfort or value against competing watches.
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
- After-sales guarantee: If you have any questions, please contact us. We will do everything we can to make you a satisfied customer. Guaranteed exchange or refund
Rank #4
- 100%brand new and quality,easy to adjust the length to fit the wrist,one size fits everyone.
- Made top Stainless Steel material,environmentally friendly and healthy
- Wearable strap/wrist strap,suitable for original watch
- Easy to insert and remove,very suitable for your watch
- Exquisite craftsmanship and stylish design are perfect gifts for friends and family.
Rank #3
- Made of non-allergic waterproof natural resin,waterproof and sweat-proof,soft and light,comfortable to wear
- It is only applicable to the watch band with Hublot Big Bang 25 x 19 x 22mm interface,not suitable for other models of watches
- It is important to select the correct model. In order to avoid the trouble caused by the return and exchange of goods,if you have any questions about the size,please contact customer service at any time
- Including packaging: 1 x Rubber strap (without metal buckle); 1 x Tool kit. Free tools make it easy for you to change and make your watch look new
Rank #2
- Compatible Watch Models: Perfect Compatible with Hublot Big Bang 19mm×25mm×22mm Series Watches,
- Product Include: 1× replacement watch band(without metal buckle) + 1× strap removal tool+ 2× Spring Bar+strap outer packaging. Using the included replacement tool, you can quickly install the strap.
- Select The Appropriate Width: Replacement for Hublot Big Bang 19mm×25mm×22mm. As the Picture , Measure the size near the strap buckle or the inside of the strap.
- High Quality Materials: High quality rubber material, waterproof and sweatproof, dust-free replacement Hublot Big Bang 19mm×25mm×22mm watch strap
- Have any questions on how to choose the size, please contact customer service
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.




