I have a Roven Dino Professional Sport Talon watch and I don't know how to reset the time

does the stem screw in the watch to hold it in place

You can get instructions from the Amitron web site.
Copy "www.armitron.com/watch_instructions.asp" into your search engine
and you will see a list of illustrations of watches and associated
instructions.

Choose the one that looks like yours and download the PDF file.

You can get instructions from the Amitron web site.
Copy "www.armitron.com/watch_instructions.asp" into your search engine
and you will see a list of illustrations of watches and associated
instructions.

Choose the one that looks like yours and download the PDF file.

This site gives an illustration showing the button labels, so it should solve your problem.

how to set time on CL-5069 sports watch

You can download the user manual for your watch from this link(http://www.watchesmanuals.com/Armitron/Armitron-Sport-40-8125BLK-Watch.htm)

http://www.timex.com/gp/node/n/255235011/178-1795200-7359408?ie=UTF8&timexBrand=core

This link will take you to the official Timex page where you can download the instruction manuals for any of their watches. All you need to know is the model number.

For setting Time & Date...
1. Push "MODE" button three times (change Mode to TimeSet)
Time -> StopWatch -> AlarmTimeSet -> TimeSet -> Time ->...
2. Flashing Second Number Digits
3. Push "RESET" to select...
Second -> Minute -> Hour(12hr<->24hr) ->...
Date -> Month -> Day of Week -> Second -> ....(repeat)
4. Use "START" to set each item...

For setting Alarm ON/OFF
1. Push "RESET" button then Push "START" same time...
Alarm ON -> Alarm OFF -> ... (repeat)

Press mode til you get to time then press and hold set. Once the hour starts blinking press the ST/SP button to set the time, then press set again for the minutes and do the same thing again. This should let you set your watch.

Just google Omega speedmaster professional manuals and you will get what you need,

this should work with your aspen watch let me know if it doesn't

http://dive.scubadiving.com/members/gearreviews.php?s=593

Quote

For the alarm: If you want to use it (I think both it and the light use battery faster than when not used), you set it by pushing mode button twice, as indicated above, then go to hour or minute setting by pushing the lap/reset button, and advance to the time you want by pressing the start/stop button. Pushing mode will take you back to normal time again.

To turn alarm on or off, hold lap/reset button in and at the same time push the start/stop button. Alarm icon will show on or off. When you release the lap/reset button, it will revert to normal time.

If the alarm is on, at the designated time it will start beeping for awhile or until the lap/reset button is pushed (off) or start/stop button (snooze).