SOVRYGN Calendar Prototype
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Prototype for review no sale value
| Automatic and Hand Winding | Power-reserve: 40hrs |
| Mineral crystal case back | Water resistance: 100m (10 ATM) |
| Day | Date |
| Month | 24hr-timer |
| Caliber Premium Miyota 9100 | Energy Automatic and Hand Winding |
| Vibration Frequency 28800 per hour | Accuracy -10～＋30 sec per day |
| Jewels 26pcs |
| Measurement | Dimension |
|---|---|
| Diameter | 39mm |
| Thickness | 13mm |
| Lug to Lug | 47mm |
| Leather Strap (with single deployment clasp or buckle) | 20mm tappering to 18mm |
| Steel Strap (with dual deployment clasp) | 20mm tappering to 18mm |
