There is a package Die containing the ICs.This module is included in a package named Bulk.Using Surface Mount, integrated circuit is mounted.There are a variety of integrated circuits for this type of Watch Circuit.You can find similar integrated circuit systems by searching for the PCA2003 family.In the case of Wrist Watches, it is appropriate for the ICs to be applied there.
PCA2003U/10AC/1,00 Features
Applications : Wrist Watches
PCA2003U/10AC/1,00 Applications
There are a lot of NXP USA Inc. PCA2003U/10AC/1,00 Specialized ICs applications.