Rolex Precision Ref. 4357 — A Guide to Rolex Classics of the 1940s The 1940s were a defining decade for Rolex. Between the end of the war and the beginning of the modern era of Swiss watchmaking, the brand developed a distinctive language of restrained elegance, technical reliability and increasingly sophisticated case design. Before the Oyster Perpetual and Datejust would establish the visual codes that became synonymous with Rolex, the company produced a remarkable variety of manually wound dress and everyday watches. Among them, the Rolex Precision occupies a particularly interesting position. This Ref. 4357, dating from the late 1940s, is a fine example of this early Rolex philosophy. Measuring approximately 35 mm, it has proportions that feel remarkably contemporary today, while retaining the understated character of a genuine period watch. The Precision name was used by Rolex to identify watches built around movements selected for their accuracy and reliability. Unlike the later sports and professional models, these watches were never designed to attract attention through technical complications or oversized cases. Their appeal lies precisely in their discretion: clean lines, balanced proportions and the unmistakable quality of Rolex manufacturing of the period. The 1940s were also an important transitional moment in Rolex case design. The relatively compact cases of the earlier decades gradually evolved toward the larger and more versatile proportions that would become characteristic of the 1950s. A 35 mm case therefore makes this reference particularly interesting for collectors looking for an authentic vintage Rolex that remains highly wearable today. The Ref. 4357 is a good representation of what makes early Rolex so compelling to collectors: it predates the brand's later mass recognition while already expressing many of the qualities that would define Rolex for decades to come. Rather than being a conventional "entry-level Rolex", an early Precision should be considered within the broader context of pre-Datejust and pre-sport Rolex collecting. Originality, dial condition, case integrity, movement correctness and period details are all essential when assessing examples from this era. For collectors interested in the history of Rolex rather than simply its most famous references, watches such as the Ref. 4357 offer something increasingly difficult to find: a genuine Rolex from the formative years of the modern wristwatch, with the restrained elegance of a late-1940s classic.