Your cart is empty
You may check out all the available products and buy some in the shop
Return to shop
Big Bang Unico Water Blue Sapphire Ref. 421.JL.4890.RT
Original price was: $560.00.$439.00Current price is: $439.00.22% OFF
📦 Buy More Save More!
Add more items to unlock bigger discounts
| Quantity | Discount | Action |
|---|---|---|
| 2 items or more | 5% OFF on entire order | |
| 3 items or more | 7% OFF on entire order | |
| 4 items or more 🔥 Best Value | 10% OFF on entire order |
Description
Description
Hublot Big Bang Unico Water Blue Sapphire Ref. 421.JL.4890.RT
Product Introduction
The Hublot Big Bang Unico Water Blue Sapphire Ref. 421.JL.4890.RT embodies a high-end futuristic sporty style. Distinguished by its strong open-worked skeleton design combined with a transparent water blue sapphire case, it creates a unique visual effect. Paired with a synchronized transparent rubber strap, this timepiece offers a modern, youthful feel while maintaining the brand’s technical identity, suitable for those who love distinctiveness, technology, and a pioneering spirit.
Story Behind the Watch
Inspired by the renowned Art of Fusion philosophy, Hublot created the Big Bang as an icon of breaking traditional boundaries since 2005, and the Water Blue Sapphire Ref. 421.JL.4890.RT continues that legacy. By utilizing transparent blue sapphire—a material considered extremely difficult to machine in the watchmaking industry—combined with an exposed chronograph skeleton face, this model honors the complete beauty of the internal movement. It represents a stride in materials and design for Hublot in the modern era, serving as a manifesto of personality, freedom, and relentless innovation.
Design Style
This model showcases a modern and fresh aesthetic. The high-quality transparent light blue rubber strap is soft and flexible, seamlessly integrating with the case. The fixed round bezel made of transparent blue material features signature technical screws, framing the intricate dial. The multi-layer skeleton chronograph dial in a grey and light blue tone reveals the mechanical structure, complemented by baton hands and Arabic numerals with luminous coating for readability and style.
Technical Specifications
- Case Material: 904L Stainless Steel
- Strap Material: High-quality transparent light blue rubber strap, metal buckle
- Crystal: Scratch-resistant Sapphire Crystal
- Hands and Hour Markers: Baton hands combined with Arabic numerals, luminous coated
- Bezel: Fixed round bezel in transparent blue material with technical screws
- Case Diameter: 44mm
- Dial Color: Multi-layer skeleton chronograph, grey – light blue tone
- Thickness: 13mm
- Movement: Japanese Miyota Movement, Accurate to ±10-12s/day
- Power Reserve: 18-24 hours
- Water Resistance: 10ATM (100 meters)
Collection
Big Bang Unico
Warranty & After-Sales Policy
- 30-day warranty from the date of receipt
- Resend support if manufacturing defects occur
- Refund guaranteed if the wrong model is delivered
100% Top-Tier Factory Guarantee
All watches sold by watchrefine.com are guaranteed to be the highest-grade versions sourced from the most prestigious factories in the industry (Clean, VS, ZF, etc.). We do not deal in low-quality or street-grade replicas. We hand-select only the most desirable pieces from a network of trusted manufacturing partners. On top of this, every watch we offer goes through a meticulous authentication and quality control (QC) process by our highly-trained watchmakers to ensure it is in proper working order, aesthetically flawless, and matches the high-specification standards we promise.
Warranty Coverage Watches purchased from watchrefine.com are covered by our exclusive Up to 30 days Technical Warranty (depending on the movement model).
- Coverage: Our warranty covers manufacturing defects that impact the mechanical function and accuracy of the watch movement.
- Exclusions: We do NOT cover cosmetic defects, normal wear and tear, loss, theft, or damage resulting from misuse, accidents, or water damage due to user error (e.g., leaving the crown open).
- Void Warranty: Any third-party service or modification completed after purchase without Watch Refine’s authorization will render this warranty null and void immediately.
Concierge Service watchrefine.com is dedicated to offering the highest level of service available. Owning your next timepiece begins with a simple inquiry — via email, text, or live chat. From there, one of our concierges will guide you through the process of selecting your next timepiece or sourcing specific rare Factory editions upon request. “Obtaining the unobtainable has never been so easy.”
YOU MIGHT ALSO LIKE
-22%Big Bang Unico Mint Green Ceramic Ref. 441.GS.5221.RX
Original price was: $560.00.$439.00Current price is: $439.00. Add to cart
-15%Big Bang One Click Joyful Steel Pink Ref. 485.SP.2210.RX.1233
Original price was: $610.00.$520.00Current price is: $520.00. Add to cart
-15%Classic Fusion Chronograph UEFA Champions League Titanium Ref. 541.NX.5170.VR.UCL25
Original price was: $600.00.$510.00Current price is: $510.00. Add to cart
-16%Big Bang Meca-10 Frosted Carbon Ref. 444.QN.1170.NR
Original price was: $580.00.$490.00Current price is: $490.00. Add to cart
-16%Spirit of Big Bang Beige Ceramic Ref. 642.CZ.6110.RX
Original price was: $580.00.$490.00Current price is: $490.00. Add to cart
