| Brand: | ETA, Valjoux | 
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| Family: | |||
| Height: | 7.00 mm | ||
| Jewels: | 17 | ||
| Reserve: | 52 hours | ||
| Frequency: | 28800 A/h | ||
| Winding: | Hand winding | ||
| Diameter: | 30.00 mm (13.25 ligne) | ||
| Complications: | 2-Button, 24 Hour Hand, Cam Switching Chronograph, Chronograph, Date, Day, Day by Pointer, Hacking Seconds, Hand Winding, Modular, Month, Moon Phase, Quick Date Correction, Quick Day Correction | ||
| Hands: | 12 Hour Chronograph Hand at 6:00, 24 Hour Hand at 9:00, 30 Minute Chronograph Hand at 12:00, Central 60 Second Chronograph Hand, Central Date Pointer, Central Hour Hand, Central Minute Hand, Day Window at 11:30, Month Window at 12:30, Small Seconds Hand at 9:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Hand-Winding  Clockwise Balance Cock |
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| Production: 1986 – 1998 | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. 7761 is a hand-winding cam-switching chronograph movement with day and date wheels, month, and moon phase. Closely related to the popular Cal. 7750, and hand-winding Cal. 7760, Cal. 7761 adds a calendar module with moon phase indicator as well as a 24 hour hand at 9:00 coaxial with the small seconds.
