Ronstan RF4055B ClearStart 50mm Sailing Watch Blue/Grey

The Ronstan RF4055B ClearStart sailing watch combines advanced race timing functionality with bold, contemporary styling in a durable 50mm case. Designed specifically for competitive sailors with input from world-class racers, this watch features intuitive programming and large, easy-to-read displays that perform in demanding marine environments.

Enhanced Durability and Comfort:

• Mineral crystal lens replaces acrylic for superior clarity and scratch resistance
• Recessed lens design improves impact protection
• Reinforced glass-filled polycarbonate case construction
• Flexible injection-molded silicone band for all-day comfort
• Lower profile textured buttons for easy operation with gloves
• Water resistant to 5 ATM (50 meters/150 feet)
• Shock resistant design

Race Mode Features:

• Multiple start sequence options including World Sailing 5-4-1-0, match racing, and user-programmable sequences
• SYNC function allows resynchronization if countdown is started late
• Multi-line display shows start sequence and time simultaneously
• Loud intuitive countdown and start sound signals
• Countdown repeat or count down and up for elapsed race time tracking
• Separate fast-access race and time mode scrolling

Daily Functionality:

• 12 or 24-hour time format with month/day or day/month display
• Daily alarm function
• Chronograph with hours and time of day
• Luminescent backlight with battery-saving mode

The RF4055B delivers the competitive edge serious sailors need with the reliability and ease of use that sets the ClearStart standard.