For instance, I don't like the buzzing sound of the PAM or Vulcan watches that I've heard. I've heard the Blancpain L'evolution alarm GMT and it sounds alright, but I preferred the sound of the JLC EWA, and purchased one. The EWA's alarm sound is very similar to a miniture school bell sound, and I find that sound very pleasant and it is loud enough to wake you up, but apparently not as loud as other JLC alarm watches. I've also heard the Sonata alarm and it is a very pleasant sound similar to a minute repeater, but I don't think it is loud enough to wake you. Maybe to just remind you of appointments during the day as you wear it. Bottom line, since I think the alarm sound is somewhat subjective you must listen to the watch's alarm before you decide on which one to purchase. One other thing is the accuracy of setting the watch. I found the JLC EWA most accurate at an accuracy of under 5 minutes of what time you wish to set it at.
As Nicolas has pointed out it sounds more like a repeater with measurable pauses between each strike. I own a JLC memovox and have heard others fairly compare it to a school bell. The Sonata is more of a ding... ding... ding. I do love my memovox but will say that the Sonata is in a class of its own.
-Patrick
**Disclaimer: The below is info sent to me by Ulysse-Nardin**
Here are some facts to consider when comparing a Sonata with the Breguet Alarm:
Functions:
Reminder or alarm setting:
Sonata 24h in both directions
Breguet 12h in one direction
Date window:
Sonata with Big Date window
Count down Indicator:
Sonata has a count down indicator in addition to the alarm setting
Chiming time:
The chiming time of the Sonata is approx 60 seconds
The sound of Breguet's alarm is approx. 15 seconds
Type of sound/chime:
Sonata has a classic chime (similar to the sound of a Sonnerie en Passant or Minute Repeater)
Breguet's alarm has a cricket type sound
Cheers,
Anthony