Agreed with eternalover. I got rid of my 8800-caliber Seamaster triology because the rotor spin sounds reminded me of cheap Miyota movements. Sadly, that characteristic is tied with the technology of the present. With JLC, Omega, Rolex, VC, and countless big names adopting ceramic ball bearing rotors over the last 10 years.
I'm glad Omega still gives us a choice with some silent-rotor movements like the 89xx range.
emagech - both watches I've had with 2500-caliber movements also had audible rotor sounds. One a Deville Prestige, and the other a Seamaster 300 (2220.80). However, both were noticeably quieter than the current generation 8800 caliber. On models like the 39.5 PO and Seamaster divers, I can hear 8800 rotor-spin in boutiques even when holding the watch at an arm's length.
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