Louis Erard 1931 Regulator Power Reserve

Regulators first appeared at the end of the 17th century, in the field of chronometry. These symbols of precision were used by watchmakers to verify the rate of watches. Four centuries later, Louis Erard pays tribute to this highly-respected instrument with the launching of its 1931 Regulator – Power Reserve.

Louis Erard 1931 Regulator Power Reserve

A blend of ancestral tradition and modernity, this watch from the alchemist of Le Noirmont is a veritable master stroke. Using one of the original pillars of horology, Louis Erard has combined its precision with an ultra-innovative design.

Louis Erard 1931 Regulator Power Reserve with black dial

Beating at the heart of this exclusive model is the brand new module made by Soprod, a complication that Louis Erard has fitted as a world premiere onto one of its original movements.

The 1931 Regulator, one of the brand’s most emblematic models, has been totally reinvented in an Haute Horlogerie spirit: a beautiful and sophisticated movement in a resolutely high-tech case.

Louis Erard 1931 Regulator Power Reserve with pvd case and black dial

The traditional hour hand has been replaced by a disc system, while the contemporary guilloché dial reveals a truly original power reserve display.

Louis Erard 1931 Regulator Power Reserve with silvered dial

The meticulous finishing, satin-brushed or black sand-blasted PVD, makes a lively contrast with the rubber strap.

Technical details

Model: Louis Erard 1931 Regulator Power Reserve

Hand-winding mechanical, ETA 7001 RE 9 calibre with Regulator – Power Reserve complication developed jointly by Louis Erard & Soprod SA

Hours, minutes, seconds and power reserve

Satin-finished/polished steel or black sand-blasted PVD
42mm diameter
Anti-reflective sapphire crystal
Transparent back
Water-resistant to 50 metre

Silvered or black
Window with dragging hours at 12 o’clock
Minutes at centre
Small seconds at 6 o’clock
Power reserve at 9 o’clock

Rubber with satin-finished steel or black PVD folding clasp

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