modern Calibers 7760 - 7768 Cal 7760 Cal 7761 Cal 7765 Cal 7767 Cal 7768

vintage Calibers 7730 - 7740 Cal 7730 Base movement, 2 sub-dials (running seconds and 30-minute counter) Cal 7731 Base 7730 but modified with a completely redesigned balance cock architecture Cal 7732 A rare variation featuring a date complication with adjusted wheel geometry Cal 7733 Revised 7730, featuring unified rounded reset hammers Cal 7734 = 7733 + date Cal 7735 A rare, minor sub-variant of the 7734 with alternative date positioning Cal 7736 Adds 12 hour sub register Cal 7737 7733 variant modified with a 10-minute regatta countdown timer Cal 7740 A rare, high-beat variant (28,800 BPH) featuring a date window and an hour counter