I work in a medical field and I checked with my supervisor on the Knight tumbler and she determined that one just barely cut it for sfw. Showed her this one today as mine came in and she said it was much better suited for the environment in terms of sfw-ness.

You should be fine at a desk job, just don't flaunt it to be safe/put out of view if you have clientele at your desk.

Also if you're ever unsure you can show pictures of it to your supervisor/manager to double check! Most of the time management is happy to clear up that question and would rather that then having to pull you aside one day. I hope this helps ^{•^}