this post was submitted on 23 Oct 2023
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The references I've seen mention the same battery (373 = SR916SW). How much bigger was the battery? Note that quartz watch batteries need to be very snug in their socket, so you may just have mistaken some resistance/tightness in fit for excess size.
At least 25% difference.
I've also come across references saying it's interchangeable for movement 4U13 (which is apparently an older one, although both now obsolete).
The 4U13 uses a 321/SR616SW battery, same height but smaller diameter.