One of ~ 3000 18-jewel 30T2SC movements made . . .
By: Dr No : August 4th, 2024-17:50
. . . for reportedly two clients, the Brazilian agent and the Canadian Railway service.
The two extra jewels (30T2SC was fitted with 16 jewels) supported the center wheel. Omega offered the upgrade to all customers but only the two took them up on it.