Casey from SWISCO responded:
September 12, 2018
Hi there, thanks for posting! The Series 380 has a 1" deep shoe and the Series 385 has a 1-3/32" deep shoe. The spring weight for balance stamp (20 3) is our (2030) and the spring weight stamp (26 4) is our (2640) option. Comparison of 15-004 and 15-005
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