Longines, Cal. 13zn, Ref. 5415, “Lip” 37 mm, water-resistant, chronograph, rare Lemon Color dial with tachymeter scale, circa mid-1940s.

The Ref.5415 has a 37mm snap-back waterproof case with a characteristic back cover called “lip”, which is different from the early mushroom and the mid-term treacle. The dial is a rare lemon color dial in Longines, where silver dials are often seen, and the blue tachymeter display and small eye design are rare and precious, attracting great color and taste. Longines’ own caliber chronographs have been perfectly established in the history of watchmaking and will continue to be appreciated and handed down in the future. Among the water-resistant chronographs equipped with Cal.13zn, it is also more affordable than the Mushroom and the Tre-tacche.