This model, known as the "Tre Tacche," is an early three-piece screw-back waterproof case equipped with the first-generation bumper automatic Cal.834 movement. The dial is a stunning Art Deco design in black gilt, featuring an uncommon roulette-style “exploding Roman” index pattern, which is rare for Eterna, a brand often associated with Arabic indexes. Despite its compact size, the case offers a solid build with an automatic movement, exuding a robust feel reminiscent of the bubble back models from the same era.
Eterna’s rich history of varied, high-quality models—such as chronographs, military pieces, and later the iconic KonTiki divers—has recently been garnering more attention for its exceptional craftsmanship and distinctive designs.