Gruen Watch Part #401 Winding Stem - Caliber 405 NM - NOS Factory Sealed

Gruen 415-416-422-423 Click Spring Part #11 - NOS

AS 1525 Watch Stem Part #401 (1 Stem) - NOS - Fits AS 1526 & AS 1526

Gruen Cal. 215-216 Part #445 Setting Bridge & Screw - NOS - Factory Sealed

Vintage Gruen 215 Balance Staff Watch Part

Gruen Watch Part #401 Winding Stem - Caliber 275 - NOS Factory Sealed

GRUEN Part #724 CAL 512 Balance Staff - NOS - Caliber 512 & 710RSS

Gruen Factory Part #445 Set Bridge for caliber 510 movements - NOS