Suunto Core O-ring replacement

I recently had to replace the O-ring in my Suunto Core altimeter watch.

Rather than buy their replacement kit, I found an equivalent O-ring, which I purchased from my favorite online parts shop.

Primarily for my own reference (since I may have to do this again), here are the dimensions for the part I ordered:

• Inner diameter: 26mm
• Outer diameter: 28mm
• Width: 1mm