Friday, 11 March 2016

Pebble Time Round - Adhering Bezels

If you want to spice up your PTR with one of those fancy Seiko bezel inserts, you'll need a way to stick it on as they don't come pre-applied with adhesive. There are quite a few options available, and a couple which aren't. Let me steer you in the right direction here.

Firstly, a few people have tried the cheapo double sided Scotch tape, and it hasn't really taken. It's a little bit stiff, which means that when it starts to release it will often come apart completely. This may result in lost bezels, which while it isn't the end of the world, still sucks. Imagine having to look at this every day:

Dayum that screen looks small!
In terms of what you might have lying around the house, i'd recommend PVA/woodworking glue or at a push, Silicone glue/sealant. Both will bond very well to the glass and insert, dry clear, and due to their inherent rubberiness will peel off readily when it comes time to swap looks. A little schmear will be more than enough to hang on to the insert, but the downside is the long curing time.

You probably already have this stuff somewhere
Because i work with mechanical watches and consumer electronics, i have a ready supply of all kinds of double sided tape. On a whim i purchased a pack of tape dots from Dagaz Watch specifically cut for Seiko bezels. While the cut ring diameter is too large for the inserts we're using on the PTR, the inner "waste" is actually perfectly sized!

It's actually just pre-cut, very thin LCD adhesive
Outer diameter is a few mm too large
Peel the backing, stick to bezel, cut around inner diameter

Voila! Super thin, super tacky adhesive!
Because the tape is ~50 microns thick, it's absolutely invisible once stuck down, and it peels and resticks superbly. You can also buy this tape in 40mm wide rolls (3M 9448A). This stuff is used extensively in mobile phone repairs, it's readily available on eBay etc.

Like this? See more of my Pebble mods!