Truly a monumental model, reference 1518 was the first perpetual calendar chronograph wristwatch ever produced in series when it was introduced in 1941. According to literature, only 281 examples were made until the reference ceased production in 1954. It paved the way for successors references 2499, 3970, 5970 and finally, 5270, which feature an in-house movement.
Today, existing reference 1518s can generally be divided into two categories. The first comprises those most commonly found on the market. While they range from showing little to heavy wear, they all display some kind of restoration or cleaning to the dial. These watches make up more than 90% of the reference 1518s on the market. Due to the reference's snap on case back and general construction, moisture easily seeped through the pushers or case back, resulting in a spotted or slightly tarnished dial. As a result, most existing reference 1518 dials have been "touched up" at some point.
The second exceedingly rare category, which the present watch falls into, comprises those that have seen no restoration or intervention at all. A parallel example in the car world would be the "preservation class". A survivor in all senses, these reference 1518s are untouched since they day they left the factory. While worn, they are 100% honest, character-laden and without a doubt, patinated.
The most defining feature of the present example is, without a doubt, the impressive case. It boasts two strong and crisp hallmarks, with one under the lug and one on the side of the case. The watch retains crisp edges and curved definition to the back of the lugs – a stunning feat, considering that many surviving examples have been polished over years of continuous wear.
Even more thrilling is the thick layer of patina and oxidation throughout the case, particularly on the bezel and inside the lugs. It takes a long period of time for the patina to "build", and its presence is evidence that the watch most likely sat, untouched, in a safe for most of its life.
Equally profound is the dial, which has gracefully aged over time, exhibiting warm ivory tones. The enamel printing remains thick and defined, with the "e" above "Genève" strong and present. The fat, wide and sharp aperture windows at 12 o’clock are a distinguishing feature of the later generation reference 1518s, their definition and crisp edges attesting to the dial’s purity.
It is not everyday that a reference 1518 comes to the market. The present watch was bought by the current owner in the early 1990s, and has remained in the same collection ever since. To offer one, in such condition, is a delight for scholars and collectors alike.