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Brand: | Sellita | 
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|---|---|---|---|
| Family: | |||
| Height: | 4.15 mm | ||
| Jewels: | 19 | ||
| Reserve: | 42 hours | ||
| Frequency: | 28,800 A/h | ||
| Winding: | Hand winding | ||
| Diameter: | 25.60 mm (11.5 ligne) | ||
| Complications: | Date, Hacking Seconds, Moon Phase, Quick Date Correction | ||
| Hands: | Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00, Moon Phase Wheel at 6:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Hand-Winding  Clockwise Balance Cock  Screw Regulator |
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| Production: 2018 – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. SW280-1 M is a hand-winding movement with moon phase and date from Sellita. Like other Sellita SW200 movements, it is based on the design of the ETA 2800 family, though ETA does not sell a direct competitor with the same functions. Sellita has produced this movement since 2018. Cal. SW280-1 is an automatic version of this movement.
The moon phase indicator is a disc located at 6:00 on the dial and the date window is located at 3:00.
Sellita SW200 Family
| Complications | Hand Winding Calibres | Automatic Calibres |
|---|---|---|
| No Date | SW210-1 | |
| Date Only | SW215-1 | SW200-1 SW400-1 (31 mm) |
| Day-Date | SW220-1 M | SW220-1 |
| Date by Pointer | SW221-1 M | SW221-1 |
| Outer Day-Date | SW240-1 M | SW240-1 |
| Small Seconds at 6:00 and Date | SW216-1 SW261-1 M | SW260-1 SW261-1 SW461-1 (31 mm) |
| Moon Phase and Date | SW280-1 M | SW280-1 |
| Moon Phase, Power Reserve, and Date | SW285-1 M a SW285-1 M b | SW285-1 a SW285-1 b |
| Central Moon Phase and Date | SW288-1 M | SW288-1 |
| Small Seconds at 9:00 and Date | SW219-1 SW295-1 M | SW290-1 SW295-1 |