Commemorating Sincere Fine Watches’ 70th Anniversary, ZENITH proudly introduces the DEFY Skyline Big Date Flyback Sincere Platinum Jubilee Edition. Limited to 70 pieces, this special edition marks the world premiere of an unprecedented combination of the big date and flyback functions within the DEFY Skyline collection. A celebration of Sincere’s pioneering spirit, this timepiece pays tribute to Sincere’s seven decades of excellence and dedication in cultivating watch appreciation in the region and its enduring partnership with ZENITH.

This collaboration between ZENITH and Sincere Fine Watches is more than just a celebration of a historic milestone – it underscores the deep bond between two trailblazers in the industry with a shared commitment to the art of horology. For 70 years, Sincere has been at the forefront of curating exceptional horological advancements to discerning collectors as Asia’s Watch Specialist. The DEFY Skyline Big Date Flyback Sincere Platinum Jubilee Edition is a testament to this pioneering spirit – a timepiece that combines trailblazing innovation with exceptional technical expertise, paying homage to both Sincere and ZENITH’s shared legacy.
A World Premiere
The DEFY Skyline Big Date Flyback Sincere Platinum Jubilee Edition debuts a world-first combination of functions in the DEFY Skyline series. The timepiece integrates the high-frequency precision of ZENITH’s renowned El Primero chronograph with a big date and flyback function—two technical achievements that redefine the series. This remarkable fusion sets a new benchmark for the DEFY Skyline collection, highlighting Sincere’s commitment to pushing boundaries, much like ZENITH’s long-standing reputation for innovation in the world of horology.

Striking Monochromatic Elegance
More than just an unprecedented set of functions, the DEFY Skyline Big Date Flyback Sincere Platinum Jubilee Edition presents a bold, stealthy aesthetic. Crafted from matte sandblasted grade 5 titanium, the 42mm case, bezel, and integrated bracelet create a striking silhouette that emphasizes the architectural form of the DEFY Skyline.
The deep grey tones of titanium enhance the timepiece’s raw, monolithic presence, while the tachymeter scale on the flange ring seamlessly follows the contours of the dodecagonal bezel. The monochromatic design is completed by a sunburst-patterned, satin-finished dial in matching metallic grey, and adorned with an engraved starry sky pattern. This design, inspired by the “Double Z” ZENITH star logo found on the earliest DEFY wristwatches dating back to 1969, bridges the past and present, paying tribute to both ZENITH’s horological heritage and Sincere’s journey of excellence.

The two key functions take centre stage in this special edition, the big date display at 6 o’clock and the chronograph’s flyback function. The big date features a patented compliant mechanism that enables both date wheels to advance and stabilize in under 0.03 seconds. Meanwhile, the flyback function allows the chronograph to be reset to zero and restarted by a single push of a button— making it possible to seamlessly time consecutive events with precision. These functions, featured in the DEFY Skyline collection for the first time, highlight ZENITH’s technical expertise.

A Mark of Exclusivity and Excellence
At the heart of the DEFY Skyline Big Date Flyback Sincere Platinum Jubilee Edition is the El Primero 3652 automatic high-frequency chronograph calibre. Operating at 5Hz and providing a 60-hour power reserve, the El Primero calibre remains one of the most precise and iconic movements in the world of horology. Renowned for its precision and performance, the El Primero has become a symbol of ZENITH’s legacy of innovation, and its inclusion in this special edition further underscores the significance of Sincere’s Platinum Jubilee celebration.
The caseback reveals the intricacies of the El Primero movement, with a star-shaped oscillating weight that rotates bi-directionally. Emblazoned with Sincere’s 70th anniversary logo on the sapphire case back, this timepiece marks a celebration of a remarkable milestone.
In keeping with the DEFY collection’s dynamic versatility, this timepiece features a quick-change mechanism, allowing for effortless interchangeability between the sleek integrated titanium bracelet and the included black patterned rubber strap. Every element of this timepiece has been meticulously considered to embody the values of craftsmanship and excellence that Sincere Fine Watches has championed over the past seven decades.
The 70-piece limited DEFY Skyline Big Date Flyback Sincere Platinum Jubilee Edition will be available at all Sincere Fine Watches Boutiques with a retail price of SGD $22,200 (including GST).