Rolex Oyster Perpetual "Bubbleback" 3131 Pink Gold - Verga Milano

This Rolex Oyster Perpetual Reference 3131 from 1938 combines a whole range of rare and exceptional features that are sure to fascinate even experienced vintage Rolex collectors. The early Bubbleback case in its rare pink gold execution, the double-signed Verga Milano dial with its mirror-finished Roman numerals in pink gold, and above all, the spectacular, almost unique patina that has developed naturally over nearly nine decades. A fascinating combination in which every single detail has its own special appeal, making this early Rolex an extraordinary piece of watchmaking history.

The history of the Rolex Bubbleback dates back to the early 1930s. With the introduction of the Oyster Perpetual in 1931, Rolex achieved a major technical breakthrough by combining the waterproof Oyster case with an automatic winding mechanism. To accommodate the relatively bulky automatic movement of the time, these early models featured a distinctively domed caseback. This unusual construction later earned them the affectionate nickname "Bubbleback". In Italy, these models are also known as "Ovetto", meaning "little egg". Today, these early Oyster Perpetual watches are among the most historically interesting Rolex wristwatches ever produced.

The absolute highlight of this Reference 3131 is undoubtedly its extraordinary dial. The originally champagne-colored surface has developed a fascinating, almost three-dimensional patina over the decades. This particular type of aging can be visually compared to the so-called "Stardust" patina phenomenon. Rather than being an artificially created finish, it is the result of a natural aging process spanning many decades. What makes it even more remarkable is that the dial has survived in its completely original and unrestored condition. It is precisely this authenticity that contributes so much to the rarity and special appeal of this watch.

Another exceptional detail is the additional "VERGA" signature beneath the Rolex coronet. It refers to the prestigious Milanese jeweler and Rolex retailer Verga, whose history dates back to the 19th century. Such double-signed dials are particularly sought after by collectors today, as they not only reflect the history of the watch itself but also document its connection to an important historic retailer. The combination of the rare Verga signature and the unique patina gives this example a very special place within the early Bubbleback family.

Equally appealing is the dial design with its so-called "Roman Mirror Pink Numerals". The mirror-finished pink gold Roman numerals at 3, 6, 9, and 12 o'clock harmonize beautifully with the slender hour markers and the warm tone of the case. Depending on the angle of the light, the applied numerals and hour markers reflect the light, creating a fascinating contrast with the richly aged dial surface. The result is a dial full of character and vintage charm.

The Oyster Bubbleback case is crafted from solid 18k pink gold. Compared to the more commonly found stainless steel or yellow gold versions, these early pink gold examples are considerably rarer. The case is in beautiful condition, showing age-appropriate signs of wear. The original gold hallmarks remain deep and clearly defined, while the reference and case numbers on the caseback are fully preserved and clearly legible. Particularly on a watch dating back to 1938, these details are important indicators of its state of preservation.

This Rolex Oyster Perpetual Reference 3131 is far more than just a classic Bubbleback from the 1930s. The rare solid pink gold case, the rare Verga Milano signature, the beautiful mirror-finished Roman numerals, and above all, the spectacularly aged, completely original dial make it an exceptional collector's piece. A watch with almost 90 years of history, whose unique patina can never be reproduced, perfectly illustrating why authentic vintage watches hold such a special fascination.

Condition Report
Dial: Original, unrestored champagne-colored dial with naturally developed patina – signed "Rolex Oyster Perpetual", "Verga", "Chronometre", and "Swiss Made".

Case: 32 mm solid 18k pink gold case in very good condition – natural signs of wear – deep, intact gold hallmarks – fully preserved and clearly legible numbers on the caseback – correct engravings on the inside of the caseback – original Rolex Oyster crown.

Movement: Original Rolex automatic caliber in excellent condition - Timegrapher readings: Rate +0 s/day, amplitude 233°, beat error 2.4 ms.

Serial number: 47xxx (1938)
Movement number: 96xxx

Int.Exe.: 98313