This Jaeger‑LeCoultre Square Art Deco / Tank‑style wristwatch dates to the 1960s and exemplifies mid‑century interpretations of classic rectangular design. The case proportions emphasize geometry and restrained elegance, a nod to earlier Art Deco language adapted for everyday wear. Powering the watch is the Cal. K818 with Kif‑Flector shock protection, reflecting Jaeger‑LeCoultre’s long tradition of robust, finely finished movements. For the contemporary collector, this piece offers historical styling and dependable mechanics, a refined example of design continuity from dress watch traditions into the post‑war era.