I have or rather had a torch I really like made by company called Tovatec.
Mine used CR123 but they make lithium rechargeable ones too.
Solid alloy billet body (adonised).
Light, with confy grip and a lanyard - could use it for self defence if you had to
Comfy grip
Double sealed thread
No hole for the switch (external slide with internal reed switch).
Very bright and long range (>100m)
Lasted 9 years being beaten up in the boat/kayak etc etc.
Stolen a couple of weeks ago.