Citizen Eco-Drive Promaster BN0151-17L

This is the watch

The deep blue dial, large luminous markers, and orange outline on the minute hand give the BN0151-17L a clear diver profile. The wide rotating bezel reinforces the instrumental look, while the dot and stick indexes create a clean rhythm around the analog display. The Promaster character is sporty and functional, with strong color contrasts that allow each part of the front to stand out clearly.

Material & fit

The round, silver-colored case is made of stainless steel and measures 44 mm in diameter and 12 mm in height. The stated weight of the watch is 93 grams, and the dial is protected by crystal glass. The blue rotating bezel has an aluminum ring. The blue strap is made of urethane-based rubber, is 176 mm long, and is attached between 20 mm wide lugs. The specified fit includes wrists of approximately 140–220 mm, offering a wide adjustment range.

Highlights

• The Eco-Drive movement with caliber E168 converts light into electrical energy and can power the watch for approximately 180 days after a full charge.
• A charging warning is displayed when the second hand begins to move in two-second increments when energy is low.
• The stated precision is ±15 seconds per month at normal temperature.
• The ISO 6425 classification, the screw-down crown, and water resistance to 20 ATM are intended for swimming, marine sports, and scuba diving, but not saturation diving.

Good to know

• How is the rotating bezel used? The unidirectional bezel can be aligned with the minute hand to track elapsed or remaining time during diving.
• Where is the date located? The date window is positioned diagonally between four and five o'clock.
• How does the strap close? It is secured with a pin buckle.
• What should be done after use in saltwater? Rinse the watch in fresh water with the crown securely screwed down and wipe away any remaining moisture.