Here is my Ultra-Chron reference 8353, just back from service, running around +1(!) sec/day. I think this is a wonderful watch. So... what do I like about it?
It looks great on the wrist in everyday use, whether formal or informal. It has not dated in 50 years.
This watch has satisfied the craving for C-cases, and contributes worthily to the pantheon of blue dials (see further below). But in truth, the bracelet was the final turn-on: a beautiful looking and superbly comfortable stainless steel Milanese, with
that emblem.
The dial furniture certainly catches fire in the light.
And the dial is capable of appearing all the way from pale denim to deep navy.
I understand the "chronometer" designation appears on only a minority of Ultra-Chrons, but truly they were all at the peak of mechanical timekeeping. This one has Cal 6651 (28,800 vph) and was first invoiced in 1973 to Japan, which I think is as expected from the brochure presented here a while back by
@gatorcpa. I wish it bore the gilded rotor seen in some other examples, but I do take pleasure in seeing the mighty wings motif there - a superb touch, imo.
