Harry Winston Bi-Retrograde Perpetual Calendar - 18K YG White Dial Lapis Lazuli Moonphase

A Landmark Moment For Independent Watchmaking

The Harry Winston Bi-Retrograde Perpetual Calendar is a historically significant watch. Introduced in 1989, it was the world's first perpetual calendar to use a dual retrograde display, a groundbreaking achievement that instantly established the high jeweler as a serious force in horology. This was made possible through a legendary collaboration with two master watchmakers, Jean-Marc Wiederrecht and the late Roger Dubuis, who developed the revolutionary module. This piece hails from the second series, produced between 1992 and 1994, and features the more desirable automatic movement. With a total production of around 600 units across all variations, it represents a rare and pivotal moment in modern watchmaking.

Yellow Gold, Lapis, And Perfect Proportions

This example pairs the warmth of an 18K yellow gold case with a clean, legible white dial. The complication is displayed with perfect symmetry, but the true highlight is the moonphase disc, rendered in a deep, vibrant Lapis Lazuli. This touch of precious stone is a direct nod to Harry Winston's heritage as a jeweler, elevating the watch beyond a purely mechanical exercise. At 37.5mm, the case is perfectly sized for a complicated dress watch, offering significant presence without sacrificing elegance. It is fitted on its original leather strap with the correct 18K yellow gold clasp, confirming its completeness.

An Unpolished And Well Preserved Example

This example is in very good condition. The 18K yellow gold case is unpolished, retaining its original factory lines and sharp definition. The white dial is clean, and most importantly, the Lapis Lazuli moonphase disc is flawless and shows no signs of cracks or fractures. All perpetual calendar, moonphase, and retrograde functions are operating correctly. As with every watch we offer, this piece has been verified as mechanically sound and is ready to wear.

For The Collector Of The Unconventional

This is a watch for the serious collector who understands its importance. It is not a mainstream choice, but a monument to the era of independent creativity that began in the early 1990s. The Bi-Retrograde is often considered the spiritual predecessor to the brand's famed Opus series, embodying the same ethos of collaborating with independent masters to push horological boundaries. It offers the intellectual satisfaction of a grand complication with the provenance of a legendary partnership, making it a cornerstone piece for any collection focused on horological innovation.

Model: Bi-Retrograde Perpetual Calendar
Year: 1992-1994
Movement: Automatic
Case Size: 37.5mm
Bezel: 18K Yellow Gold
Strap: Original Leather with 18K YG Clasp
Bracelet Length: Up to 8in
Dial: White with Lapis Lazuli Moonphase
Metal: 18K Yellow Gold
SKU: 1581