1. Pengenalan
Thank you for choosing the Bulova 98B428 Racer Chronograph Watch. This manual provides detailed instructions for the proper setup, operation, and maintenance of your new timepiece. Please read this manual thoroughly to ensure optimal performance and longevity of your watch.
2. Produk Lebihview
2.1 Ciri-ciri Utama
- Pergerakan: Kuarza
- paparan: Chronograph with 24-hour sub-dial
- Bahan kes: Black-plated Stainless Steel
- Bahan Tali: Black Leather with Tang Buckle
- Kristal: Kaca Nilam
- Tahan Air: 100 Meters (suitable for swimming and snorkeling, not diving)
- Fungsi Khas: Chronograph, Calendar (Date), Luminous Hands and Markers, Tachymeter
- Diameter Sarung: 42 mm
- Ketebalan Sarung: 13 mm
2.2 Komponen Jam Tangan
Familiarize yourself with the main components of your Bulova 98B428 watch:

Imej: Depan view of the Bulova 98B428 Racer Chronograph Watch, showcasing the black dial with orange accents, chronograph sub-dials, and tachymeter scale.

Imej: sebelah view of the Bulova 98B428 watch, showing the crown and chronograph pushers on the right side of the case.

Imej: belakang view of the Bulova 98B428 watch, displaying the stainless steel case back with engraved details such as water resistance and model number, and the black leather strap.
- Mahkota: Digunakan untuk menetapkan masa dan tarikh.
- Penolak (A & B): Used to operate the chronograph functions.
- dail: Main display with hour, minute, and second hands, sub-dials, and date window.
- Tachymeter Scale: Located on the outer bezel, used for measuring speed.
2.3 Komponen yang Disertakan

Imej: The Bulova 98B428 watch presented in its gift box, featuring a tire-tread inspired watch holder.
- Bulova 98B428 Racer Chronograph Watch
- Kotak Hadiah
- Maklumat Waranti
3. Persediaan
3.1 Menetapkan Masa
- Pull the crown out to position 2 (the furthest position). The second hand will stop.
- Turn the crown to set the hour and minute hands. Ensure the AM/PM is correctly set by observing the 24-hour sub-dial.
- Push the crown back to position 0 (normal position) to start the watch.
3.2 Menetapkan Tarikh
- Tarik mahkota keluar ke kedudukan 1 (klik pertama).
- Turn the crown clockwise or counter-clockwise to set the date. Avoid setting the date between 9 PM and 3 AM, as this may interfere with the date change mechanism.
- Push the crown back to position 0 (normal position).
3.3 Chronograph Hand Zero Reset
If the chronograph hands (seconds, minutes) do not return to the zero position after resetting, they may need to be calibrated:
- Tarik mahkota keluar ke kedudukan 2.
- Press pusher A (top pusher) repeatedly to advance the chronograph second hand to the 12 o'clock position.
- Press pusher B (bottom pusher) repeatedly to advance the chronograph minute hand to the 12 o'clock position.
- Once all chronograph hands are aligned to zero, push the crown back to position 0.
4. Arahan Operasi
4.1 Menggunakan Chronograph
Fungsi kronograf membolehkan anda mengukur masa berlalu.
- Mulakan: Press pusher A to start the chronograph. The chronograph second hand will begin to move.
- Berhenti: Press pusher A again to stop the chronograph. The elapsed time will be indicated by the chronograph hands.
- Tetapkan semula: After stopping, press pusher B to reset all chronograph hands to their zero positions.
4.2 Using the Tachymeter
The tachymeter scale on the bezel can be used to measure speed over a known distance (e.g., 1 kilometer or 1 mile).
- Start the chronograph at the beginning of the measured distance.
- Stop the chronograph when you reach the end of the distance.
- The position of the chronograph second hand on the tachymeter scale indicates the average speed per hour. For example, if it takes 30 seconds to cover 1 unit of distance, the hand will point to 120 on the tachymeter scale, indicating a speed of 120 units per hour.
4.3 24-Hour Display
The small sub-dial typically located at the 3 o'clock position indicates the time in a 24-hour format, which is useful for distinguishing between AM and PM when setting the main time.
4.4 Ciri-ciri Bercahaya

Imej: The Bulova 98B428 watch dial in darkness, showing the luminous hands and hour markers glowing brightly for visibility.
The hands and hour markers of your Bulova 98B428 watch are treated with a luminous material. After exposure to light, these elements will glow in the dark, providing visibility in low-light conditions. The intensity and duration of the glow depend on the exposure time and intensity of light.
5. Penyelenggaraan dan Penjagaan
5.1 Tahan Air
Your Bulova 98B428 watch is water resistant to 100 meters (10 ATM). This means it is suitable for everyday use, swimming, and snorkeling. It is bukan suitable for high-impact water sports or scuba diving.
- Ensure the crown is always pushed in completely to maintain water resistance.
- Do not operate the crown or pushers while the watch is wet or submerged in water.
- Selepas terdedah kepada air masin, bilas jam tangan dengan air tawar dan keringkan dengan teliti menggunakan kain lembut.
5.2 Membersihkan Jam Tangan Anda
Untuk mengekalkan penampilan jam tangan anda:
- Wipe the case and crystal with a soft, dry cloth regularly.
- Untuk kotoran degil, gunakan sedikit damp kain dan sabun lembut, kemudian lap sehingga kering.
- Elakkan menggunakan bahan kimia yang keras atau bahan yang melelas, kerana ini boleh merosakkan kemasan jam tangan.
5.3 Hayat Bateri dan Penggantian
Your watch is powered by a quartz movement, which uses a battery. The typical battery life is 2-3 years. When the battery needs replacement, it is recommended to take your watch to an authorized Bulova service center or a reputable watchmaker to ensure proper battery installation and maintenance of water resistance.
5.4 Penjagaan Tali Kulit
The leather strap is susceptible to wear and tear. To prolong its life:
- Elakkan pendedahan berpanjangan kepada cahaya matahari langsung, suhu ekstrem dan kelembapan.
- Clean the strap with a soft, damp cloth and allow it to air dry naturally.
- Avoid contact with cosmetics, oils, and chemical products.
6. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tonton berhenti atau berjalan sekejap-sekejap. | Bateri lemah. | Gantikan bateri. |
| Masa atau tarikh tidak betul. | Incorrectly set, or crown is not fully pushed in. | Refer to Section 3.1 and 3.2 to reset time and date. Ensure crown is in position 0. |
| Tangan kronograf tidak ditetapkan semula kepada sifar. | Chronograph hands need calibration. | Refer to Section 3.3 for chronograph hand zero reset. |
| Pemeluwapan muncul di bawah kristal. | Temperature change or water ingress. | Contact an authorized service center immediately. Do not attempt to open the watch. |
7. Spesifikasi
| Ciri | Perincian |
|---|---|
| Nombor Model | 98B428 |
| Jenis Pergerakan | Kuarza |
| Bahan Kes | Black-plated Stainless Steel |
| Diameter Kes | 42 Milimeter |
| Ketebalan Kes | 13 Milimeter |
| Bahan Kristal | Kaca Nilam |
| Warna Dail | Hitam |
| Bahan Tali | kulit |
| Warna Tali | Hitam |
| Lebar tali | 21 Milimeter |
| Jenis Genggam | Tang Buckle |
| Tahan Air | 100 Meter (10 ATM) |
| Ciri Khas | Chronograph, Luminous Hands/Markers, 24-Hour Display, Tachymeter, Date Display |
| Berat Barang | 100 Gram |
8. Waranti dan Sokongan
8.1 Maklumat Waranti
Your Bulova 98B428 watch comes with a limited warranty. Please refer to the warranty card included with your purchase for specific terms, conditions, and duration of coverage. The warranty typically covers manufacturing defects but does not cover normal wear and tear, accidental damage, or damage resulting from improper use.
8.2 Sokongan Pelanggan
For any questions, service, or repair needs not covered in this manual, please contact an authorized Bulova service center or the retailer from whom you purchased the watch. Do not attempt to open or repair the watch yourself, as this may void the warranty and cause further damage.