Description
Description:
The BN0231-01L from the CITIZEN PROMASTER series is a professional-grade dive watch that combines robust construction with a refined blue dial aesthetic. Designed to meet ISO diver’s standards, this model delivers high reliability under extreme conditions while maintaining a clean and highly legible display. The bold case structure and unidirectional bezel emphasize its purpose-built functionality.
Powered by Eco-Drive technology, the watch converts light into energy, eliminating the need for regular battery replacement. With 200-meter water resistance and durable materials, it is built for both underwater performance and everyday wear. The BN0231-01L offers a balance of professional capability and long-term practicality.
Key Specifications:
- Case: approx. 44 mm diameter, approx. 12 mm thickness; stainless steel
- Bezel: Unidirectional rotating bezel
- Band: Urethane strap, black
- Water resistance: 200 m (ISO diver’s)
- Movement: Eco-Drive quartz calibre E168
- Battery/Power: Light-powered; approx. 6 months power reserve
- Accuracy: ±15 seconds/month
- Display: Analog (3-hand + date)
- Functions: Date display
- Special features: ISO-certified diver’s watch, screw-down crown
- Illumination: Luminous hands and markers
- Additional: Mineral crystal
- Origin: Japan / international model
- Warranty: 1–2 years
- Release date: Approx. 2020
Key Highlights:
The BN0231-01L stands out as a reliable ISO-certified diver’s watch within the CITIZEN PROMASTER lineup. Its bold case design and deep blue dial provide strong visual identity while maintaining excellent underwater readability.
Powered by Eco-Drive technology, this watch eliminates the need for battery changes by converting light into energy. This feature significantly enhances long-term usability and reduces maintenance requirements, making it ideal for both diving and everyday wear.
With 200-meter water resistance and a unidirectional bezel, it is built for serious underwater use. At the same time, its balanced design and comfortable strap make it suitable for daily wear, appealing to users who want both function and versatility