Manufactured in the 1940s, this is a Daniel Watch featuring a Landeron 48 movement, housed in a 36mm stainless steel clamshell waterproof chronograph case. It showcases a rare black multi-scale Roman dial. The distinctive black dial layout features a prominently displayed snail tachymeter scale achieved through a base process and Roman indexes arranged in a roulette style, representing a remarkable design characteristic of its time. Utilizing the early-style waterproof case known as "clamshell" with four screws, this timepiece encapsulates the virtues of a vintage chronograph.
Equipped with the Landeron Cal.48 movement, which was supplied to many brands including Breitling and Heuer, renowned chronograph manufacturers. The watch incorporates a unique operation method: the chronograph start and restart are controlled by the button at 2 o'clock, while the chronograph stop and reset are managed by the button at 4 o'clock.