Manufacturer | Sellita |
Caliber Number | SW290-1 |
Base Caliber |
Sellita SW200-1 |
Movement Type | Automatic, self-winding mechanical |
Lignes | 11.5”’ |
Diameter |
25.6mm |
Height |
5.6mm |
Jewel Count |
31 |
Beat Rate / Frequency |
28,800 bph / 4 Hz |
Lift Angle |
50 degrees |
Power Reserve |
38 hours |
Rotor Style |
Ball-bearing |
Rotor Winding Direction |
Bi-directional (reverser style) |
Hand-Windable? |
Yes |
Mainspring |
Nivaflex |
Anti-Shock Device |
Novodiac or Incabloc (depends on grade) |
Hand Count | 3 |
Hand Sizes |
1.5mm / .90mm / .20mm |
Functions | Central hours; central minutes; small seconds subdial at 9:00; date at 3:00 (also possible without a date) |
Hacking Seconds? |
Yes |
Quickset Date? |
Yes |
Country of Manufacture | Switzerland, Swiss made |
Known Models |
Aquastar Deepstar II (Add your watch to the comments below…) |
The Sellita caliber SW290-1 is a Swiss made automatic movement with a small seconds complication at 9:00. This caliber is available with a date at 3:00, or as a true no-date.
Base Caliber:
This calibre is based on the SW200-1. Many parts are interchangeable between the two movements, but not all, due to the small second configuration. For customizing purposes, and SW200-1 dial can be used, but a hole will need to be drilled for the small seconds hand. The hour and minute hands from an SW200-1 can be used, but not the seconds hand.
Additional Resources:
Recent Comments
Wow, excellent read! I love this site!!
All about trimmer condensers in quartz watches
Hi Ant, thank you for sharing. Would you be ok with this picture being used…
What is a trimmer capcitor?
I have this movement in an early seventies era Bucherer gents watch. It is marked…
The luminous material is Tritium. I'm radioactive, baby! Send me some Rad-Away.
Many of us express absolutely justified concerns about durability, longevity and serviceability of movements with…