Marathon MSAR Quartz Mode D'emploi page 13

3. Always set it forward.
During events such as daylight-savings, you might be inclined to wind your
watch back an hour, however this can put undue stress on the movement of your
watch. Always move the hands forward to reach your desired time setting.
4. Dive and swim with confidence.
Once the crown of the watch is fully secured our SAR Dive Watches are rated
for 30ATM and are water resistant to a depth of 300 meters (1000 feet).