The Citizen Collection NH9110-90L is an elegant Japanese Domestic Market (JDM) mechanical watch. It features an “open heart” dial design that exposes the inner balance wheel. Its striking blue sunray dial, sapphire crystal, and robust 100-meter water resistance combine classic luxury aesthetics with durable daily functionality.
Technical Specifications
| Component / Feature | Specification |
|---|---|
| Model Number | NH9110-90L |
| Movement Type | Mechanical Automatic (Self-winding + Hand-winding) |
| Caliber Number | Citizen Caliber 8229 |
| Jewels | 21 Jewels |
| Power Reserve | Approximately 40 hours |
| Accuracy | -20 to +40 seconds per day |
| Case Material | Stainless steel |
| Band Material | Stainless steel (Multi-link bracelet) |
| Glass Type | Spherical Sapphire Crystal |
| Dial Color | Blue (with vertical sunray pattern) |
| Dial Features | Open Heart window at 7 o’clock position |
| Case Back | See-through exhibition case back |
| Case Diameter | 40.0 mm |
| Case Thickness | 12.9 mm |
| Weight | 133 grams |
| Water Resistance | 10 ATM (100 meters / 330 feet) |
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