Jaeger-LeCoultre Reverso One Duetto Moon Q3358420, Silver/Blue Dial, Stainless Steel

Opening Context
The Reverso began life in 1931 as a practical solution for polo players, but over time it became something much more interesting: a watch whose reversible case invited both protection and creativity. Few modern Reversos express that dual character as elegantly as the Reverso One Duetto Moon. It takes the original Art Deco architecture and uses the turning case not simply as a novelty, but as a way to offer two distinct personalities in one watch. In steel, with a silver dial on one side and a deep blue moonphase display on the other, this reference feels both rooted in history and unmistakably modern.

Why This Reference Matters
The Q3358420 stands out because the reverse side is not treated as an afterthought. The front dial remains classical Reverso: silver, clean, and framed by Arabic numerals in the style collectors immediately recognize. Turn the case over, though, and the watch becomes more atmospheric, with a blue dial and moonphase display that gives the piece a softer, more intimate mood. That contrast is the whole appeal of the Duetto concept. It allows the watch to shift from crisp daytime elegance to something more expressive and evening-oriented, while remaining coherent as a single design. The manually wound calibre 842 is integral to that idea, purpose-built for the Reverso’s rectangular case and able to serve both faces with the kind of mechanical integrity Jaeger-LeCoultre is known for.

On the Wrist
At 40.1 mm by 20 mm, the Reverso One Duetto Moon wears with delicacy, but the elongated rectangular case gives it more presence than the numbers suggest. It sits neatly and comfortably on the wrist, with the steel case keeping the watch versatile and easy to wear. The black leather strap adds contrast and formality, while the folding deployant clasp gives it a more secure and polished feel. What really defines the wearing experience, though, is the ability to change the mood of the watch simply by reversing the case. It feels personal, interactive, and quietly charming.

Condition & Transparency
This example features a stainless steel reversible case with a silver front dial with Arabic numerals and a blue reverse dial with moonphase display. It is fitted to a black leather strap secured by a stainless steel folding deployant buckle and powered by the manually wound Jaeger-LeCoultre calibre 842 with approximately 38 hours of power reserve. As always, details regarding condition, the integrity of the reversing mechanism, service history, and set completeness should be communicated clearly and only on the basis of confirmed information.

Why It Belongs in a Collection
The Reverso One Duetto Moon belongs in a collection that values design, versatility, and character in equal measure. It offers more than a traditional dress watch because it can shift its personality depending on the moment, yet it still carries all the architectural discipline that makes the Reverso such an enduring icon. For collectors drawn to shaped watches and to Jaeger-LeCoultre’s ability to combine elegance with ingenuity, it is a particularly thoughtful reference.

Closing
The Reverso One Duetto Moon Q3358420 is compelling because it embraces the reversible case as more than heritage. It turns it into a genuine part of the watch’s personality. With its silver and blue dials, moonphase display, and graceful proportions, it remains one of the more poetic modern expressions of the Reverso idea.

Specifications

• Case Size: 40.1 mm x 20 mm
  
• Case Material: Stainless Steel
  
• Dial: Silver Dial with Arabic Numerals (Front) and Blue Dial with Moon Phase with Diamond-Set Case (Reverse)
  
• Strap: Black Leather Strap with Stainless Steel Folding Deployant Buckle
  
• Power Reserve: Approx. 38 Hours
  
• Movement: Manual-Winding (Calibre 842)

Shipments are delivered under Delivered Duty Unpaid (DDU) terms, with duties and taxes payable by the recipient.