Oddly enough, the PK was .32 caliber, used by police and the PPK .380 a favorite of Nazi party wheels.
You might look at the Kel Tec 9 mms and Ruger LC9, or the even smaller LCP if you like that caliber. I have a Beretta Tomcat .32 I like very much, DA/SA.
Or the Springfield XDS in 9 mm. The trigger on the Walther is circa 1944. Otherwise a classic piece, but heavy.
yes the specs show heavy i like the smooth.
lcp comes in both 38 +p and 357