As an Ingenieur you only had one correct choice...
Thank you Rob. I believe by the engraving on your beautiful watch that you are a fellow engineer. Let me add a few lines about scratches...
Canadian engineer's rings are made of stainless steel (originally from iron). We receive our ring from the Corporation of the Seven Wardens in a ceremony developed by Rudyard Kipling.
The iron ring is a simple, rough cut circle with a very low nominal value; only a few dollars. At first, the Seven Wardens wanted to make the ring finer and more impressive, but Kipling showed its simple appearance could be part of its meaning. He wrote:
“It is rough as the mind of the young. It is not smoothed at the edges, any more than the character of the young. It is hand-hammered all around and the young have their hammerings coming to them. It has neither beginning nor end, any more than the work of an Engineer, or as we know Space itself. It will cut into a gold ring if worn next to it: thus showing that one had better keep one's money-getting quite separate.”
The ring is given by an engineer who has already taken the obligation, and is to be worn on the pinky finger of the dominant hand; i.e. the one you write with. Over time, the ring receives many scratches and becomes smooth. Scratches are the marks of wisdom or so we hope.