SEAGULL PT5000 / SEAGULL ST2130 / ETA2824-2
🛠️ Basic Specifications:
- Manufacturer: Tianjin Seagull Watch Group, China
- Caliber: PT5000
- Type: Automatic movement with manual winding and hacking seconds
- Movement type: Mechanical automatic
📏 Dimensions:
- Diameter: 25.6 mm (11½ lignes)
- Height: 4.60 mm
- Dial feet positions: Compatible with ETA 2824-style cases
⚙️ Technical Details:
- Jewels: 25
- Beat rate: 28,800 vibrations per hour (8 beats per second / 4 Hz)
- Power reserve: Approximately 38–42 hours
- Winding direction: Bidirectional
- Manual winding: Yes
- Hacking (stop seconds): Yes
⏱️ Functions:
- Display: Hour / Minute / Central seconds / Date
- Date position: Typically at 3 o’clock
- Quick date setting: Yes (via crown)
- Hand hole diameters:
- Hour: 1.50 mm
- Minute: 0.90 mm
- Seconds: 0.25 mm
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📈 Accuracy (factory specs):
- Daily rate: −10 to +30 seconds/day (can be regulated tighter)
- Chronometer version: Some PT5000 movements are COSC-certified
⚒️ Compatibility / Use Cases:
- Clone of: ETA 2824-2 (close dimensional and functional match)
- Used in: Many microbrands and homage watches
- Advantages: Affordable alternative to Swiss movements
- Watch types: Dive watches, pilot watches, dress watches