You can use a Aladin as a dive timer, especially a nitrox one.
An ordinary one will get bent every dive for up to several days and kill the battery quicker but a nitrox one won't if you set it to 50%. It will beep at you for the whole dive almost ( I never hear it till I surface and you can switch the beeps off, never bothered doings so myself) but works perfectly as a dive timer and on reaching the surface is completely unbent.
I use a D timer and my aladin as my two timers when diving tables rather than having two D timers around.