Manufactured in the late 1940s, this is an Eterna "Sei-Take" stainless steel 36mm jumbo waterproof model powered by the legendary Cal. 852, featuring a silver luminous dial. It is housed in the distinctive 36mm six-notch screw-back case known among collectors as the "Sei-Take," and is fitted with the oversized Cal. 852 movement, the same caliber that was also used in military-issued models.
The silver dial has beautifully aged to a warm beige tone, creating an outstanding vintage character. Its light-colored surface gives the watch an even greater visual presence, making it wear more like a 38mm timepiece. The combination of its substantial case size, richly patinated dial, and robust movement results in a watch with exceptional wrist presence and timeless appeal.
In recent years, Eterna has attracted increasing attention from collectors for its diverse and high-quality lineup, which includes chronographs, military watches, and later iconic models such as the Contiki diver. The brand continues to be highly regarded for both its technical excellence and sophisticated design.