Introducing the Speake-Marin One&Two Openworked Tourbillon

Following the success of the One&Two collection with several models released in the past few years, such as the One&Two Dual Time and the One&Two Openworked, Speake-Marin now extends its offering with a 60-seconds flying tourbillon.

The signature element of the One&Two collection is the small seconds at 1:30 which has now been replaced in the new model to feature the flying tourbillon complication. It is worth noting that this is a departure from traditional watchmaking codes as Speake-Marin is the only watchmaker to position its tourbillon there. Since the tourbillon cage has to go through the time setting mechanism, it is a real technical constraint in terms of movement development to place it at that position on the dial, let alone the fact that a tourbillon cage requires more space than a small seconds subdial.

SMA05 Calibre
SMA05 Calibre

To achieve this feat, the brand developed the new SMA05 Caliber, which is part of its portfolio of proprietary calibres that the brand has heavily invested in since 2015. Four years ago, Speake-Marin decided to bring together its resources and initiate a movement strategy to fully develop and assemble proprietary movements within its atelier in the Neuchâtel area of Switzerland. For this timepiece they developed the SMA05 calibre which is a 3Hz movement offering 72 hours of power reserve.

All this package is placed inside an evolution of Speake-Marin’s signature Piccadilly case which has been in use since its introduction in 2003. The case is thinner and provides better wearing comfort with its protruding lugs and crown placed closer to the case to soften its aesthetics. The wearing comfort is paired with the lightness of titanium which is the material used for the case of the One&Two Openworked Tourbillon.

Speake-Marin One&Two Openworked Tourbillon

Visually this new watch is incredibly well balanced between the barrel, the oscillating mass, the tourbillon and the power reserve at the 7:30 position. This technical symmetry blends harmoniously with the classical appearance of the Piccadilly case and creates a masculine and contemporary style that will please amateurs of “Belle Horlogerie.”

Technical Specifications


Self-winding SMA05 Calibre with micro-rotor; 60-sec Flying Tourbillon; Hours, Minutes; 72-hour power reserve


38 or 42mm titanium


Black alligator. Folding buckle in titanium


5 pieces of each diameter

Speake-Marin One&Two Openworked Tourbillon
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