Marking two decades of the Big Bang collection, Hublot is introducing the “Master of Sapphire” set – a limited edition of five watches that demonstrate the brand’s ongoing focus on case innovation and material experimentation. Each model features a coloured sapphire case, showcasing Hublot’s continued work with transparent materials in watchmaking.


Case: A Spectrum of Sapphire
The “Master of Sapphire” set comprises five watches, each with a 44 mm polished sapphire case in a distinct colour: Transparent, Water Blue, Deep Blue, Purple, and Neon Yellow Saxem. At 15.30 mm thick and water-resistant to 5 ATM, the cases are equipped with anti-reflective sapphire casebacks and feature a “20 YEARS” engraving on the crown.

Hublot “Master of Sapphire” Set: Dial
The dial of each Big Bang “Master of Sapphire” is a polished transparent skeleton, offering a window into the intricate workings of the HUB1201 movement. This design choice not only highlights the technical prowess of Hublot’s watchmakers but also enhances the visual appeal of the timepiece. The colour accents on the hands and applied markers are matched to the case, creating a cohesive aesthetic.
Movement: The MECA-10 Marvel
Powering each Hublot “Master of Sapphire” Set model is Hublot’s HUB1201 manual-winding movement. Operating at 3 Hz (21,600 A/h), the calibre consists of 223 components and 24 jewels. It includes a silicon lever escapement, a rhodium-plated balance wheel, and a rack-style power reserve indicator showing a full 10 days of power reserve.

Strap: Seamless Integration of Colour and Comfort
Each timepiece in the set is paired with a transparent lined silicone strap that complements the hue of its sapphire case. Whether it’s the Transparent White, Water Blue, Deep Blue, Purple, or Neon Yellow, the strap ensures a seamless integration of colour and comfort. Secured by a titanium deployant buckle, it complements the design while ensuring comfort and wearability.

Price & Availability
Limited to just five sets, the Hublot Big Bang 20th Anniversary “Master of Sapphire” Set is something of a Hublot collector’s dream. Each set is presented in a unique display case, featuring a backlit panel with vertical lights and a frosted sliding glass panel, complete with an engraved plaque marking “Master of Sapphire XX/05”. The price for the set is EUR 629,000.
FEATURES
BRAND | Hublot |
MODEL | Big Bang 20th Anniversary “Master of Sapphire” |
REFERENCE | Sapphire: 424.JX.4820.RT Water Blue Sapphire: 424.JL.4890.RT Deep Blue Sapphire: 424.JE.4890.RT Purple Sapphire: 424.JM.4890.RT Yellow Neon Saxem: 424.JY.4890.RT |
CASE MATERIAL | Polished Sapphire Crystal and Saxem |
DIMENSIONS | Diameter: 44mm Height: 15.30mm |
WATER RESISTANCE | 5 Bar (50 metres) |
DIAL | Polished Transparent Skeleton |
STRAP/BRACELET | Transparent Lined Silicone |
MOVEMENT | HUB1201 |
MOVEMENT TYPE | Manual winding |
POWER RESERVE | 10 Days (240 Hours) |
FREQUENCY | 3 Hz (21,600 vph) |
FUNCTIONS | Hours, Minutes, Small Seconds, Power Reserve Indicator |
PRICE | EUR 629,000 |