I just wanted to contribute my experience to the thread.
I have metal deployment bands and buckle straps on other watches I wear depending on my needs. I wanted a metal band that was more classic/retro in appearance to combine with the 360 round look. Despite the tech I thought it would be a nice combination for my needs.
I looked at the prior discussions about finding a fit. These are my actual observations and not as much micrometer measurements. First the 22mm is very accurate both in measurement and band fit. The thickness of the stock band, mine was grey was 4.0 plus or minus .05 at the spring pin. It is important to realize that bands may have different thickness between watch and buckle end. Especially leather. I have found this before on my other watches.
Now for the observation. I spent about 5 years in HS and College working at a jewelry store and have changed hundreds of bands and adjusted sizing on many. What I found to be the challenge on the 360 was not as much the depth, once the 4.0 mm selected it was the curvature of the housing under the "Lip" created by their design. So the straight pin and straight band must not be to thick to fit the spacing from the hole and the rounded housing (toward the end of band or radius from spring pin). I have a micrometer and just could not find a way to get a measurement to provide. I also found that the brushed stainless is a match, sandblasted finish shows darker but could also be satisfactory for some. This is my observation buyer choice.
If you look at the leather band it has a cut out in the middle. Motorola also provides a thinner spring pin. I had to use the original spring pin as the band came with one that is slightly larger, more like my other watches and it did not allow the links to fit into the space between chassis and hole for the pin. Once I did that it was just a little finesse to get lined up and then all was good.
Summarizing what to look for: My opinions and actual observations. 22 MM (of course), 4.00 MM thickness max, minimal depth between line past the center line of spring pin. My opinion is less than 2 mm on measurement as close as I can get. Or experiment with bands that have a "Curve" at the end to allow for the tight clearance while still meeting other parameters.
I purchased the band on line lots of price ranges and spent more for one that had features that I knew would benefit my fitting needs. It also provided a more "Retro" look I desired.
Strapcode is the company that I used. The can be found by using the .com ending on their name. Quality packaging to prevent scratches, smoothness of the links and operation of the clasp are all very good.
Shipped from China but arrived in less than a week along with a strap tool, mine disappeared in the move but will probably show up now that I bought another. Watch is very comfortable and the additional weight is good for me and also the ability to stand small amounts of water is great. Like what happens when you wash your hands. The stock band had already spotted in a couple of places.
I hope this information helps.
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