The Citizen Collection NP1010-78L is a Japanese-made automatic dress watch featuring a textured royal blue dial and an “open heart” window that reveals the mechanical movement inside.
Description
- Open-Heart Aesthetic: A skeleton cutout at 7 o’clock shows the pulsing balance wheel.
- Dual Subdials: Includes a 24-hour indicator at 11 o’clock and small seconds at 5 o’clock.
- Premium Glass: The front crystal is scratch-resistant sapphire; the back is transparent mineral glass.
- Versatile Size: The 39mm case width fits comfortably on diverse wrist sizes.
- Daily Durability: Features 100-meter water resistance, safe for swimming and splashes.
- Dual Winding: The movement supports automatic self-winding from motion and manual hand-winding.
Specifications
| Specification | Details |
|---|---|
| Model | Citizen NP1010-78L |
| Movement | Mechanical Automatic (Citizen Caliber 4197) |
| Jewels | 21 Jewels |
| Power Reserve | Approximately 40 hours |
| Accuracy | -20 to +40 seconds per day |
| Case Material | Stainless Steel |
| Band Material | Stainless Steel |
| Clasp Type | Three-fold clasp with push-button release |
| Crystal Front | Sapphire Glass |
| Case Back | Exhibition (See-through mineral glass) |
| Case Diameter | 38.9 mm |
| Case Thickness | 11.2 mm |
| Water Resistance | 10 bar (100 meters / 330 feet) |
| Weight | 137 grams |
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