Manufactured in the 1940s, this is the Seema Chronograph featuring the renowned Valjoux 22 movement. With a 37.5mm clamshell waterproof case, secured by four screws and known as the clamshell (meaning 'hamaguri' or clam in Japanese), it boasts a robust construction unique to early waterproof cases. The substantial design, combined with its 37mm oversized dimensions, exudes an overwhelming presence.
The dial, designed for excellent visibility with luminescent paint, coupled with the weighty waterproof case, showcases a splendid taste reminiscent of military watches. Equipped with the prestigious Valjoux Caliber 22, a masterpiece adopted by many brands, including Rolex, during the same era. This Seema timepiece, crafted by the Seema company known for producing military models for the British forces, exemplifies high-quality craftsmanship and is a remarkable chronograph of its time.