Louis Erard 1931 Power Reserve Manual Wind ETA 7001, 42mm Steel Case, Rubber Str

Up for sale is a Louis Erard 1931 Power Reserve, a Swiss‑made manual‑wind wristwatch featuring the highly regarded ETA 7001 calibre with an exclusive Louis Erard power‑reserve module. The watch offers central hours and minutes, a small‑seconds display at 6 o’clock, and a disc‑style power reserve at about 10 o’clock that lets you see at a glance how much energy remains in the mainspring.louiserard+1

The stainless‑steel case measures approximately 42 mm across and is paired with a sporty black rubber strap, giving the watch a versatile dress‑sport character that wears comfortably on most wrists. It features a textured black dial with applied indices, an Arabic “12,” and open‑worked hands that provide excellent legibility while adding a touch of modern flair. The watch is fitted with a sapphire crystal and is rated to 50 m water resistance, suitable for daily wear (not diving).wornandwound+2

Inside is a hand‑wound mechanical movement based on the thin ETA 7001, operating at 21,600 bph with a power reserve of around 42 hours. The transparent caseback (on most 1931 Power Reserve models) allows you to appreciate the movement and fine finishing typical of Louis Erard’s 1931 collection. This reference is known for offering an accessible taste of Haute Horlogerie‑style complications—regulator‑style layout and power reserve—at a realistic price point.