The second generation Apple Watch SE was first introduced at Apple's "Far out." keynote on 7 September 2022. Internally, the Apple Watch SE is referred to as N143sAP (Watch6,10 - 40mm), N143bAP (Watch6,11 - 44mm), N149sAP (Watch6,12 - 40mm Cellular) or N149bAP (Watch6,13 - 44mm Cellular).
Application Processor
The Apple Watch SE uses the same T8301 CPU as the Apple Watch Series 6, Series 7, Series 8, and Apple Watch Ultra