A quick/peek at a relatively plain vintage dress watch from the 1960s, the Girard-Perregaux 7815. A manual wind, silver sunburst dial with small seconds. Straight lugs and a thin bezel are very typical for these watches and there have been many like this around. What makes Ref. 7815 for GP a little bit special is its comparably large diameter of 35mm. Most other watches like this from GP were more in the 33mm range. 2mm may not sound much, but it makes a huge difference.