This wristwatch has been manufactured just like the first completely water-resistant wristwatch invented by Jean Finger and patented in Switzerland in 1921. It has a 750 (18K) gold Lépine case with fluted middle to facilitate the screwing of the bezel. Cambered mineral crystal inside, cambered sapphire crystal outside. Quartz movement with small seconds at 6 o’clock. “Wire” attachments with barrettes on a black or brown crocodile strap.