Technical Details & Model History

• Case: stainless steel, approx. 33 mm diameter
• Movement: manual winding Longines caliber 12.68z “Stop Seconds”
• Dial: original black, naturally aged to a brown tropical tone, with peripheral minute track
• Functions: chronograph with stop-seconds feature
• Crystal: domed plexiglass
• Reference: 4278
• Year of production: 1940s
• Strap: high-quality black leather
• Condition: excellent, completely original and in perfect working order

Key Features

• Equipped with the celebrated Longines caliber 12.68z
• Rare “Stop Seconds” version with hacking seconds function — highly sought after by collectors
• Original black dial naturally aged to brown, creating a stunning “tropical” effect

Historical Context

The Longines Chronograph ref. 4278 represents one of the finest achievements of Longines manufacture in the 1940s. Powered by the legendary caliber 12.68z, this rare “Stop Seconds” version adds an uncommon technical feature to an already exceptional chronograph. The original black dial, now beautifully aged to a tropical brown hue, gives the watch a distinctive character and unique vintage appeal — a truly outstanding example for discerning collectors.