Not tight at all. You should be able to slide a little finger or index finger in between your wrist and strap. Leaving a gap will be more comfortable throughout the day and the strap will last longer because leaving a small gap won’t stretch the leather when fitting and removing. If you are someone that likes a tight strap then opt for a clasp instead of a buckle. A clasp doesn’t require tightening the strap to remove. See Rob’s fitting guide for more information.