Features:
High quality for professional use
Stable performance and long service life
Nice part to repair your watch and make it work properly
With flyback calendar, energy display, flywheel display and calendar speed dial function
Central seconds, retrograde date at 9:30, power reserve at 2:30, open balance at 6:00
Specifications:
Function: date and power reserve
Diameter: 30.4mm
Thickness: 7.4mm
Frequency: 21,600bph
For ST 2505
Package include:
1x Watch Movement