11 1/2”’ | Automatic | Swiss Lever | Sweeping Seconds | Date | Day | Month | Year | Day/Night Indicator |

Remarks:

• Pseudo complete calendar:
  • Year at 11:30 H
  • Month at 12:30 H
  • Date at 3 H
  • Day at 9 H
  • 24-hour indicator (small hand) and day/night indicator (disk) at 6 H
  • Month and year can only be switched by hand
• The movement belongs to the ST16 movement family. This is a simplified construction of the Miyota 8205/8215 movement in combination with a Seiko-inspired bidirectional automatic winding system (Magic Lever)
• Sweeping Seconds with hacking

• Listing ID: 4953
• Manufacturer / Brand: Sea-Gull / Seagull
• Caliber: ST16S5 / TY2872
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date & Day & Month & Year
• Other Functions: Day/Night Indicator
• Jewels: 21
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Similar to Incabloc
• Beats per hour: 21,600
• Balance Type: Glucydur?
• Power Reserve: Unknown
• Production Period: At least since 2012
• Country: China
• Identification: Data sheet from Sea-Gull and information from the watch manufacturer.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-3#post-1300147