Almost 400 years after the appearance of the regulator in the field of chronometry, Louis Erard pays tribute to this veritable symbol of precision. For the occasion, it has introduced an exclusive complication thanks to a new module developed in partnership with Soprod.

Featuring a hand-wound, ETA 7001 RE9 caliber with Regulator Power Reserve complication developed jointly by Louis Erard and Soprod SA, the 1931 Régulateur Réserve de Marche offers a regulator with hours, minutes, seconds, and power reserve indicator functions. Meaning each display is separate from one another.

Available in three variations, the 42 mm case comes in either stainless steel with a silvered white or black dial, and black PVD-treated stainless steel with a black dial. Each version comes with the same black rubber strap, with a folding clasp that matches the case material. Water-resistance is rated at 50 meters.

Photo by Louis Erard.