Reddit mentions of Armorsuit - Apple Watch Screen Protector (38mm Series 3 / 2 / 1 Compatible) MilitaryShield [Max Coverage] Screen Protector for Apple watch 38 mm [2 Pack]

It is one of these:

ArmorSuit MilitaryShield - Apple Watch 38mm Screen Protector [Full Screen Coverage] [2-Pack] Anti-Bubble Ultra HD Shield with Lifetime Replacements https://www.amazon.com/dp/B00UH3K244/ref=cm_sw_r_cp_awd_K9bGwbK174C51

Went on fairly easy.

I installed this on my wife's S2 watch and she loves it. It wasn't too bad to install
www.amazon.com/ArmorSuit-MilitaryShield-Protector-Replacements-Anti-Bubble/dp/B00UH3K244/ref=redir_mobile_desktop?encoding=UTF8&psc=1&ref=ya_aw_oh_bia_dp

I'm a nurse and want to wear mine at work. I just got my Apple Watch Sport and I'm worried about scratching it by bumping it on someone's bed rail or something, so I ordered a screen protector from Amazon and also some bumpers for the face to change up the color and add some protection from scuffs. I also got apple care. I may be being too cautious, but I rarely spend $350 on an accessory so you're damn right I'm gonna baby it!

Edit: This is the screen protector I ordered. I haven't received it yet but it offers edge to edge protection and seemed to have mostly positive reviews.

These are the bumpers I got. I thought they'd add a little extra protection and plus it'll be fun to switch up the colors and match them with different bands.

I got the 38mm LTE series 3 in silver aluminum with applecare. I put a screen protector and case on regardless of which model because they all scratch. If you’re concerned about shattering from impact or bumps then definitely go with the aluminum and save some cash.

Armorsuit - Apple Watch Screen Protector (38mm Series 3 / 2 / 1 Compatible) MilitaryShield [Max Coverage] Screen Protector for Apple watch 38 mm [2 Pack] https://www.amazon.com/dp/B00UH3K244/ref=cm_sw_r_cp_api_xgTMAbKQXSF5C

[6 Color Pack] Fintie Apple Watch Case 38mm, Ultra Slim Lightweight Polycarbonate Hard Protective Bumper Cover for All Versions 38mm Apple Watch Series 3 (2017) / Series 2 / Series 1 Sport & Edition https://www.amazon.com/dp/B014HA8RG2?ref=yo_pop_ma_swf

Although you may want a more protective case. These snap on and can come off with enough of a bump.