This is a 3 o'clock case various Seiko movements including the NH35. The case has a 39mm diameter and built very similarly to the 02W0 cases. Some improvements to this case include a larger and screw down crown. This item comes with the appropriate gaskets, a see through case back and a crown. Crystal is NOT included.
Note: These are designed for using the gray spacer that typically comes in Seiko movements like the NH35.