Jaeger-LeCoultre Master Ultra Thin Small Seconds, 2009–2011.

JAEGER-LECOULTRE watch, Master Ultra Thin Small Seconds, ref. 174.8.90.S, serial no. 29009XX, years 2009–2011.
Stainless steel case. Silver-colored circular dial. Hour markers with applied indices. Dauphine-style hands. Small seconds sub-dial at 6 o’clock. Sapphire crystal. Fluted crown at 3 o’clock featuring the brand logo. Black alligator leather strap with a folding clasp; both are original Jaeger-LeCoultre components. JLC 896 in-house caliber. Automatic movement visible through the case back. It works.
Measurements: 40 mm (case diameter).

The Jaeger-LeCoultre Master Ultra Thin Small Seconds packs 223 components into a profile just 7.6 mm thick, featuring a 22-karat gold oscillating weight to optimize power reserve within such a tiny space. The watch owes its extreme reliability to the rigorous “Master Control 1000 Hours” certification, a test lasting more than 41 days that the manufacturer originally introduced in 1992 to revolutionize industry standards.

In the watch descriptions, the phrase “it works” means that the watch is functioning. Since collector’s watches typically have delicate and complex mechanisms, the buyer is responsible for any general servicing, inspection, battery replacement, adjustment, or repair that may be necessary. We do not guarantee the perfect functioning of any watch. All photographs of our watches are original and were taken by our photographers; in other words, we do not use stock photography, which is why the photographs are considered part of the listing.