| Brand: | ETA | 
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| Family: | |||
| Height: | 5.2 mm | ||
| Jewels: | 21 | ||
| Reserve: | 42 hours | ||
| Frequency: | 28800 A/h | ||
| Winding: | Automatic, Bi-Directional Automatic Winding | ||
| Diameter: | 25.6 mm (11.5 ligne) | ||
| Complications: | Date, Day, Leap Year, Month, Moon Phase, Quick Date Correction, Quick Day Correction, Quick Month Correction, Year | ||
| Hands: | Central Hour Hand, Central Minute Hand, Date Pointer at 12:00, Day Pointer at 3:00, Month Pointer at 9:00, Moon Phase Wheel at 6:00, Year Wheel at 9:00 | ||
| Production: 1990 – 2000 | |||||||||||
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| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
ETA’s 2890-9 is a modular perpetual calendar movement produced from 1990 to 2000. It is based on the ETA 2892-2, part of the second generation of the ETA 2890 family. The replacement, ETA 2890A9, based on the updated ETA 2892A2, was introduced in 1999.
The ETA 2890-9 paired a perpetual calendar and moon phase module with the ETA 2892-2 base. This increased thickness from 3.6 mm to 5.2 mm. Unlike the similar 2891-9, this movement lacks a seconds hand.
The perpetual calendar layout is as follows:
- Central hour and minute hands
- Day pointer at 3:00 (set by pusher at 1:30)
- Month pointer at 9:00 (set by pusher at 8:00)
- Moon phase wheel at 9:00 (set by pusher at 4:30)
- Year/leap year wheel at 9:00 (set with month pusher)
- Date pointer at 12:00 (set by pusher at 10:30)
