Seagull ST3601 Manual Winding Movement (9 o'clock secondhand)

The Seagull ST3601 is a manual-winding mechanical movement based on the ETA/Unitas 6498-1 design. Featuring a small seconds display at 6 o’clock, it is widely used for larger-sized dress watches, pilot watches, and custom hand-wound projects.

Specifications:

• Manufacturer: Tianjin Seagull Watch Group
  
• Movement Type: Manual Wind (hand-winding)
  
• Frequency: 21,600 vibrations per hour (3Hz)
  
• Jewels: 17
  
• Power Reserve: Approximately 48 hours
  
• Diameter: 36.6 mm
  
• Height: 4.5 mm
  
• Winding: Manual, crown-operated
  
• Accuracy: ±15 to ±30 seconds per day (typical)