Citizen Nighthawk BJ7004-43H, 42mm, Grey Dial
Citizen Nighthawk 42mm, Grey Dial
The Citizen Nighthawk BJ7004-43H is a men's solar sport watch featuring a grey dial, 42.4mm stainless steel case, and 200m water resistance.
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About this item
- Citizen Eco-Drive Promaster Nighthawk with dual time and date.
- Features a durable silver-tone stainless steel case.
- Equipped with a robust mineral crystal for protection.
- Water resistant to 200 metres, suitable for swimming and snorkelling.
- Includes a special Promaster tackle box and an extra yellow rubber strap.
Top Highlights
- Brand
- Citizen
- Model Name
- Eco-Drive
- Model Number
- BJ7004-43H
- Department
- Men
- Item Type
- Watch
- Manufacturer
- Citizen
- Country of Origin
- Japan
- First Available
- 2 December 2024
Features & Specs
- Display
- Analog
- Movement Type
- Solar
- Calibre
- B877
- Power Source
- Light Powered
- Additional Features
- Water-resistant
- Complications
- GMT, Date
- Battery
- No battery (solar)
- Strap Type
- Strap
- Case Material
- Stainless steel
- Case Size
- 42.4 mm
- Case Thickness
- 12.42 mm
- Lug Width
- 22.0 mm
- Weight
- 520 g
- Water Resistance
- 200 m
- Sport Type
- Walking
- Strap
- Polyurethane
- Clasp
- Buckle
- Closure Type
- Buckle
- Crystal
- Mineral crystal
Style
- Style Name
- Classic
- Dial Shape
- Round
- Dial Colour
- Gray
- Band Color
- Black
- Face Style
- Teaked
- Collection
- Promaster
Will it fit your wrist?
Best on 17.7–18.7 cm (7.0–7.4 in) wrists
A 42.4 mm case sits just right on these wrists. If your wrist is 18.7–19.7 cm, it looks smaller and more understated. If your wrist is 16.7–17.7 cm, it looks bigger and bolder.
Measure your wrist and see what fitsA rough guide based on case diameter only.
Is this watch big or small?
50% of the men's watches we list are smaller than this one
The most common men's size is 42 mm (174 models). 2 models are 42.4 mm, like this one.
All our watch size dataDescription
The Citizen Promaster Nighthawk BJ7004-43H stands as a compelling choice for enthusiasts seeking a robust and feature-rich solar-powered timepiece. This model, part of Citizen's esteemed Promaster collection, is specifically geared towards men who appreciate a blend of aviation-inspired design and practical functionality for daily wear and outdoor pursuits. Its distinctive grey dial and substantial 42.4mm stainless steel case offer a commanding presence on the wrist, embodying a tool watch aesthetic.
Powering this Nighthawk is Citizen's proprietary Eco-Drive solar movement, a testament to sustainable watchmaking that harnesses any light source to maintain its operation, effectively eliminating the need for battery replacements. The watch is housed in a durable stainless steel case, protected by a resilient mineral crystal, offering good resistance against everyday impacts. With a substantial 200-metre water resistance, it is perfectly capable of handling recreational swimming, snorkelling, and even light diving activities, making it a versatile companion for aquatic adventures.
A standout feature is its dual time zone capability, allowing travellers to track two times simultaneously, complemented by a date display for added convenience. The watch comes with a comfortable black polyurethane strap, and notably, includes an additional interchangeable yellow rubber strap, offering customisation. This makes the Nighthawk BJ7004-43H a practical choice for daily wear and outdoor activities, combining style with robust functionality.
Frequently Asked Questions
Is the Citizen Nighthawk BJ7004-43H suitable for daily wear and swimming?
Yes, the Citizen Nighthawk BJ7004-43H is designed for daily use and is water resistant to 200 metres. This makes it suitable for recreational swimming, snorkelling, and showering, but not for professional diving. Its robust stainless steel case and mineral crystal offer good durability for an active lifestyle.
What is the main difference between this Eco-Drive model and a standard quartz watch?
The primary difference is the power source. The Citizen Nighthawk BJ7004-43H features an Eco-Drive solar movement that converts light into energy, eliminating the need for battery replacements. A standard quartz watch typically relies on a disposable battery that requires periodic changing.
How does the dual time function work on this watch?
The dual time function on the Nighthawk BJ7004-43H allows you to track two different time zones simultaneously. This is particularly useful for travellers or those who frequently communicate across time zones. You can easily set the second time zone using the crown, providing convenient global timekeeping.
What kind of maintenance does the Eco-Drive movement require?
The Eco-Drive solar movement in the Citizen Nighthawk BJ7004-43H requires minimal maintenance. It needs regular exposure to light to stay charged, but no battery changes are necessary. Periodic cleaning of the case and strap, and occasional checks of the water resistance seals, are generally sufficient for long-term care.
Is the mineral crystal durable enough for outdoor sports?
The mineral crystal on the Citizen Nighthawk BJ7004-43H offers good resistance to impacts and shattering, making it suitable for many outdoor sports. However, it is more prone to scratches than sapphire crystal. For very rugged activities, extra care might be needed to protect the crystal from abrasive surfaces.
What wrist sizes is the 42.4mm case suitable for?
The 42.4mm case of the Citizen Nighthawk BJ7004-43H is generally suitable for a wide range of men's wrist sizes, typically from 6.5 to 8 inches (16.5 to 20 cm) in circumference. Its moderate size ensures a comfortable fit without being overly bulky, making it a versatile choice for many users.
Editor's take
The Citizen Promaster Nighthawk BJ7004-43H stands as a compelling choice for enthusiasts seeking a robust and feature-rich solar-powered timepiece. This model, part of Citizen's esteemed Promaster collection, is specifically geared towards men who appreciate a blend of aviation-inspired design and practical functionality for daily wear and outdoor pursuits. Its distinctive grey dial and substantial 42.4mm stainless steel case offer a commanding presence on the wrist, embodying a tool watch aesthetic.
Powering this Nighthawk is Citizen's proprietary Eco-Drive solar movement, a testament to sustainable watchmaking that harnesses any light source to maintain its operation, effectively eliminating the need for battery replacements. The watch is housed in a durable stainless steel case, protected by a resilient mineral crystal, offering good resistance against everyday impacts. With a substantial 200-metre water resistance, it is perfectly capable of handling recreational swimming, snorkelling, and even light diving activities, making it a versatile companion for aquatic adventures.
While the Nighthawk BJ7004-43H excels in functionality and durability, its mineral crystal, though robust, is more susceptible to scratches compared to sapphire. For those who prioritise ultimate scratch resistance in a daily wear watch, this might be a point of consideration, potentially requiring more careful handling or a future crystal replacement. The included interchangeable yellow rubber strap is a thoughtful addition, enhancing its versatility and allowing for a quick style change.
Ultimately, the Citizen Promaster Nighthawk BJ7004-43H is an excellent recommendation for men seeking a reliable, low-maintenance sport watch with dual time capabilities and a strong aesthetic. Its Eco-Drive technology and 200m water resistance make it a formidable contender against other quartz or entry-level automatic sport watches, particularly for those who appreciate the convenience of solar power and a distinctive, rugged design.
In categories
From the manufacturer

Citizen Eco-Drive Endurance
The Citizen Eco-Drive BJ7004-43H operates on solar power, eliminating the need for battery changes. Its robust 42.4mm stainless steel case and 200m water resistance provide reliable performance for diverse conditions. A mineral crystal protects the dial, ensuring clarity and durability.

Solar Powered Precision
Citizen's proprietary Eco-Drive movement harnesses light from any source, converting it into energy stored in a power cell. This ensures continuous operation without requiring periodic battery replacements, a hallmark of the BJ7004-43H. The system maintains precise timekeeping through its efficient energy management.
THE DETAILS
The BJ7004-43H features a 42.4mm stainless steel case, offering a substantial wrist presence without excessive bulk. Its mineral crystal provides adequate scratch resistance for daily wear. The watch is rated for 200 metres of water resistance, suitable for recreational diving.

OWN YOUR STYLE- DISCOVER MORE
The polyurethane strap on the BJ7004-43H offers comfort and resilience, complementing the watch's practical design. Its robust construction ensures suitability for active lifestyles. This combination of materials and features makes the timepiece a versatile instrument for various environments.

CITIZEN PARTNERSHIPS
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