A beautiful example from the mid-1950s, this Zenith chronometer is powered by the renowned Cal.135 and features a rare engraved screw-back case with a silver dial.
It houses the Cal.135, a manual-winding chronometer movement often regarded as one of the finest ever made, with approximately 11,000 units produced between the late 1940s and early 1960s.
With a wide variety of dial and case variations known, this particular piece stands out for its luxurious silver dial, featuring multi-faceted wedge-shaped indices and dolphin hands, beautifully reflecting the design aesthetics of its era. The round screw-back case, which sits comfortably on the wrist, is also exceptionally well-crafted—truly a remarkable piece.
The case back engraving—“ZENITH CHRONOMETRE / SHOCK & WATER PROTECTED / NON-MAGNETIC ☆ STAINLESS STEEL”—is rarely seen and is thought to have been used only for a limited period to emphasize the watch’s high level of practicality and durability.