Water resistance for saturation diving
This watch is specially designed for use in saturation diving, which requires helium gas.
Make sure you carefully check the depth rating of your watch, which is indicated either on the watch dial or on the case back. Never use the watch underwater deeper than the specified depth.
![5R65D_Water resistance + Water resistance He-GAS](/-/media/HtmlUploader/Common/Seiko/Home/instructions/html/SEIKO_5R65_DS_EN/assets/fig/5R65D_Water--resistance_BONDILujruonbk.png)
Depth range
![5R65D_Water resistance V + Water resistance He-GAS V](/-/media/HtmlUploader/Common/Seiko/Home/instructions/html/SEIKO_5R65_DS_EN/assets/fig/5R65D_Water--resistance--V_BONDILuwuvgdwn.png)
Depth range
Depth range
The above illustration is provided as an example, therefore it may not be exactly the same as your watch.