RARE DOUBLE-SIGNED ROLEX OYSTER ATHLETE BUCHERER'S DIAL: This is a genuinely rare and highly collectible pre-war Rolex Oyster Athlete wristwatch carrying the coveted double-signed "ROLEX OYSTER ATHLETE / BUCHERER'S" dial — a configuration commanding significant premium over standard examples. Bucherer, the prestigious Swiss retailer established in 1888, commissioned double-signed Rolex pieces for exclusive retail sale, and surviving examples with intact double-signed dials are actively sought by serious Rolex collectors. The case serial number 127411 and movement serial 2595 date this watch to approximately the late 1930s. The cream sector dial features gold baton hour markers at 3, 9, and 12, gold dauphine-style hands with original gilt patina, a subsidiary seconds register at 6 o'clock with a distinctive Art Deco stepped chapter ring, and an outer railroad minute track with rectangular indices. The movement is engraved "ROLEX / 15 RUBIS / SWISS MADE" on the rotor bridge, running in a 29mm stainless steel Oyster case with finely milled bezel and "OYSTER PATENT" stamped crown.The Oyster Watch Co. Geneva-Swiss screw-back carries full multi-national patent stamps covering Great Britain, Switzerland, France, the USA, and Germany, with SAR and additional hallmark cartouches — all correct period details for this reference. The watch is presented on a brown leather strap and is running in its current condition.This is a mechanical wristwatch. No battery is required or applicable. The movement was running at time of listing and is sold in its current condition.