If I understand correctly, preferred materials these days include white gold or similar composites, which are then coated in a film of silver. Working with solid silver is more complex, and subject to mishap, as it's a softer metal. Silver also becomes patinated over time, which brings warmth to the dials of older watches.
The hands are polished with fine-grained diamond encrusted paper, then thermally blued to a shade that UJ calls its own. The observatory eye is asymmetric and helps to taper the hand from centre to tip. The observer's eye is gently guided by it towards the perimeter of case. It's these minute touches that make the watch a quiet, satisfying viewing experience.
The Breguet comparisons are understandable. Urban Jürgensen spent a year under the tutelage of Abraham-Louis Breguet, and also John Arnold and Ferdinand Berthoud. He went on to build superlative marine chronometers, and his writings on watchmaking became reference points for successive generations of watchmakers.
This watch was produced a decade or so after the passing of then owner Peter Baumberger and chief watchmaker Derek Pratt. Nevertheless, it carried forward their commitment to reviving classical traditions, down to its use of an enhanced Frédéric Piguet 1160 movement.
On a personal note, its proportions are part of its appeal. I have a few gold watches, and prefer them sub-40mm. The compactness allows me to enjoy them without the risk of them appearing ostentatious.