Citizen Promaster Diver BJ8050-08E – Eco-Drive 300 m Professional Dive Watch

Engineered for the serious diver, the Citizen Promaster Diver BJ8050-08E combines rugged functionality with Eco-Drive technology—harnessing any light source to power the watch indefinitely without battery changes. Housed in a robust 48 mm stainless-steel case, this timepiece offers a crisp mineral crystal dial with luminous hands and hour markers, a unidirectional rotating bezel for tracking dive time, and a reliable Japanese quartz movement. Rated to 300 m (1,000 ft) of water resistance, it meets ISO standards for professional diving. Clad on a comfortable rubber strap with a secure clasp, it’s your ultimate underwater companion.

Core Features & Benefits

• Eco-Drive Technology: Converts light into energy—never replace a battery.
• 300 m Water Resistance: ISO-compliant for scuba diving and professional underwater activities.
• 48 mm Stainless-Steel Case: Durable, corrosion-resistant construction.
• Mineral Crystal: Scratch-resistant window for clear legibility.
• Luminous Dial: Large hands and markers coated with luminescent material for low-light readability.
• Unidirectional Rotating Bezel: Precise dive-time tracking—prevents accidental over-rotation.
• Date Display: Convenient date window at 4 o’clock.
• Comfortable Rubber Strap: Flexible, secure, and quick-drying for aquatic use.

Design & Durability

The Promaster Diver’s bold 48 mm case delivers wrist presence without sacrificing wearability. Its screw-down crown and case back lock out water, while brushed and polished finishes lend rugged elegance. The matte black dial—accented by large, luminous hands and markers—offers unbeatable contrast. The robust rubber strap is engineered to resist saltwater corrosion and maintain comfort over wetsuits or bare skin.

People Also Ask

How often does an Eco-Drive watch need service?

Eco-Drive movements require minimal servicing; a manufacturer-recommended check every 3–5 years ensures seals remain water-tight and performance remains optimal.

Can I swim and dive with this watch?

Yes. With a 300 m rating and ISO compliance, it’s suitable for recreational scuba diving, snorkeling, and water sports—but avoid deep saturation diving.

Technical Specifications

Specification	Details
Model Number	BJ8050-08E
Movement	Eco-Drive (Japanese Quartz)
Case Diameter	48 mm
Case Material	Stainless Steel
Crystal	Mineral
Water Resistance	300 m / 1,000 ft (ISO Diver’s 300 m)
Bezel	Unidirectional Rotating
Strap	Black Rubber with Clasp
Functions	Hours, Minutes, Seconds, Date
Power Reserve	Up to 6 Months (full charge)

Optimizing Your Dive Watch

• Pre-Dive Check: Rotate the bezel and verify it clicks firmly.
• Secure Strap: Adjust for a snug fit over wetsuits to prevent shifting.
• Light Exposure: Regularly expose the watch to light to maintain full charge.
• Avoid Extreme Heat: Prolonged direct sunlight can degrade seals over time.

Why Citizen Promaster Diver Stands Out

While many dive watches demand battery swaps, the Eco-Drive Promaster harnesses any light source—outdoors or indoor—to power itself. Its ISO-compliant 300 m rating and tool-watch design ensure reliability where it matters most. Built by a renowned Swiss–Japanese collaboration, Citizen’s craftsmanship and cutting-edge green technology offer durability, accuracy, and environmental consciousness.

For divers and adventurers who require a robust, precise, and maintenance-free timepiece, the Citizen Eco-Drive Promaster Diver BJ8050-08E ticks every box. With its scratch-proof mineral crystal, luminous dial, professional water resistance, and never-die Eco-Drive power system, it’s engineered to excel both underwater and on land. Elevate your dive gear—secure yours today!

Weight	1.28 kg
Dimensions	11.02 × 4.25 × 4.17 cm
Binding	Watch
Brand	Citizen
Color	Black
Creator	Citizen
Department	Male
EAN	0751744809014
IsAdultProduct	0
Manufacturer	Citizen
Model	BJ8050-08E
MPN	BJ8050-08E
PartNumber	BJ8050-08E
Publisher	Citizen
Size	Case diameter-dimension 46 mm Case thickness 18 mm
SKU	B000EQU15O
Studio	Citizen
UPC	132050676932