1. Pengenalan
This manual provides detailed instructions for the Citizen Promaster Skyhawk A-T Eco-Drive Pilot Watch, Model JY8078-01L. This timepiece combines advanced atomic timekeeping with Citizen's innovative Eco-Drive technology, ensuring precise timekeeping without the need for battery replacement. Designed for pilots and enthusiasts, it features a comprehensive set of functions including a chronograph, perpetual calendar, dual time, alarms, and a pilot's rotating slide rule bezel.
Figure 1: Citizen Promaster Skyhawk A-T Eco-Drive Pilot Watch (Model: JY8078-01L) with blue leather strap.
2. Persediaan Awal
Before using your watch, ensure it is adequately charged and synchronized. The Eco-Drive technology allows the watch to charge from any light source.
2.1. Pengecasan Awal
Place the watch in direct sunlight or under strong artificial light for several hours to ensure a full charge. The power reserve indicator will show the current charge level. Avoid placing the watch in extreme heat.
Video 1: Explanation of Citizen Eco-Drive Technology and how it charges the watch using light.
2.2. Penyegerakan Masa Atom
Your watch automatically synchronizes with atomic time signals for superior accuracy. This typically occurs overnight. For manual synchronization or to set your home city, refer to the detailed operating instructions in Section 3.1.
Video 2: Detailed explanation of how Atomic Timekeeping works in Citizen watches.
3. Arahan Operasi
The Promaster Skyhawk A-T features an Ana-Digi display, combining analog hands with digital displays for various functions. Familiarize yourself with the watch's layout using the diagram below.
Figure 2: Watch Dial and Function Overview.
3.1. Setting Home City and Time Zone
- Tarik mahkota ke kedudukan pertama.
- Rotate the crown to select your desired home city (time zone). The digital display will show the city code.
- Push the crown back in to set. The watch will adjust its time and date accordingly.
3.2. Menggunakan Kronograf
The 1/100 second chronograph measures up to 24 hours.
- Enter Chronograph mode (CHR) using the mode hand.
- Press the upper right button to start/stop the chronograph.
- Press the lower right button to reset.
3.3. Perpetual Calendar
The perpetual calendar automatically adjusts for month lengths and leap years until 2100. No manual date adjustment is required once the home city is set.
3.4. Dual Time (Second Time Zone)
The watch can display a second time zone. To switch between home time and the second time zone, press the two side buttons simultaneously.
3.5. Penggera
The watch features two independent alarms (AL-1, AL-2).
- Enter Alarm mode (AL-1 or AL-2) using the mode hand.
- Use the crown and buttons to set the desired alarm time.
- Activate or deactivate the alarm as per the on-screen indicators.
3.6. Pemasa Undur
A 99-minute countdown timer is available.
- Enter Timer mode (TMR) using the mode hand.
- Set the countdown duration using the crown and buttons.
- Start and stop the timer using the appropriate buttons.
3.7. Digital Backlight and UTC Display
The digital displays feature a backlight for low-light conditions. The Universal Coordinated Time (UTC) can also be displayed on one of the digital screens.
3.8. Power Reserve Indicator
The power reserve indicator shows the remaining charge level of the Eco-Drive power cell. Keep the watch exposed to light to maintain optimal charge.
3.9. Pilot's Rotating Slide Rule Bezel
The rotating slide rule bezel can be used for various aviation calculations, such as multiplication, division, fuel consumption, and speed calculations. Consult specialized aviation resources for detailed usage of the slide rule.
4. Ciri-ciri Utama
- Teknologi Eco-Drive: Powered by any light, eliminating the need for battery replacement.
- Penjagaan Masa Atom: Synchronized to atomic time clocks in 43 world cities for superior accuracy. Automatically adjusts for Daylight Saving Time.
- Promaster Air Design: Modern, pilot-inspired design with robust construction.
- Anti-Reflective Sapphire Crystal: Highly scratch-resistant and provides clear visibility.
- Tahan Air: Rated for 200 meters (660 feet), suitable for professional marine activity and serious surface water sports, but not scuba diving.
- Blue Angels Insignia: Features the iconic Blue Angels insignia on the caseback, reflecting precision and performance.
Figure 3: Caseback with Blue Angels Insignia.
5. Penjagaan dan Penyelenggaraan
5.1. Garis Panduan Pengecasan
To maintain optimal performance, expose your Eco-Drive watch to light regularly. A fully charged watch can run for several months in the dark, but consistent exposure to light is recommended. If the watch stops, expose it to bright light for several hours to restart and recharge.
5.2. Pembersihan
Wipe the watch case and strap with a soft, dry cloth. For water-resistant models, a damp cloth can be used, ensuring the crown is pushed in. Avoid using harsh chemicals or abrasive materials.
5.3. Tahan Air
The watch is water-resistant to 200 meters. Ensure the crown is fully pushed in before any contact with water. Do not operate buttons or the crown while the watch is wet or submerged.
6. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Watch stops or hands do not move. | Caj tidak mencukupi. | Expose the watch to bright light for several hours to recharge. |
| Masa tidak betul. | Incorrect home city setting or failed atomic synchronization. | Verify home city setting (Section 3.1). Ensure the watch is in an area with good signal reception for atomic synchronization, especially overnight. |
| Paparan digital kosong atau malap. | Low power reserve. | Charge the watch fully. |
| Buttons or crown are stiff. | Pengumpulan kotoran atau serpihan. | Bersihkan jam tangan dengan kain lembut,amp cloth. If the issue persists, contact Citizen service. |
7. Spesifikasi
- Nombor Model: JY8078-01L
- berkaliber: U680
- Pergerakan: Eco-Drive (Light-Powered)
- Penjagaan masa: Atomic Timekeeping with Synchronized Time Adjustment in 43 World Cities
- Bahan kes: Keluli Tahan Karat
- Bahan Tali: Indigo Blue Italian Leather with Yellow Contrast Stitching
- Warna Dail: Dark Blue with Yellow Accents
- Kristal: Anti-Reflective Sapphire Crystal
- Tahan Air: 200 Meter (660 Kaki)
- Fungsi: 1/100 Second Chronograph (up to 24 hours), Perpetual Calendar, Dual Time (Second Time Zone), 2 Alarms, 99-Minute Countdown Timer, Digital Backlight Display, Universal Coordinated Time (UTC) Display, Power Reserve Indicator, Pilot's Rotating Slide Rule Bezel, Luminous Hands and Markers.
- Dimensi: 4.72 x 4.72 x 4.72 inches (Product Box Dimensions); Watch dimensions are typically around 46mm case diameter.
- Berat: 11.11 ounces (Product Box Weight)
8. Waranti & Sokongan
Your Citizen Promaster Skyhawk A-T watch comes with a Waranti Terhad 5 Tahun. Waranti ini meliputi kecacatan pembuatan di bawah penggunaan biasa. Sila simpan bukti pembelian anda untuk tuntutan waranti.
For detailed warranty terms, service requests, or additional support, please visit the official Citizen Watch website or contact their customer service department. You can often find comprehensive user guides and FAQs on their support pages.
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