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Description
Ronstan Clearstart 50mm Sailing Watch - BlackProduct Description Ronstan Clearstart 50mm Sailing Watch Black Features: Specialist RACE MODE Features including: Multiple Start Sequence options World Sailing 5,4,1,0, Match Racing, User Set Synchronization function resynchronise if you start the countdown early or late Multi line display Start Sequences + Time Loud intuitive count down and start sound signals Countdown repeat or Countdown and up options (for elapsed race time). Separate fast access
Product Description
Ronstan Clearstart 50mm Sailing Watch - Black
Features:
Specialist RACE MODE Features including:
Multiple Start Sequence options - World Sailing 5,4,1,0, Match Racing, User Set
Synchronization function - resynchronise if you start the countdown early or late
Multi-line display - Start Sequences + Time
Loud intuitive count down and start sound signals
Countdown repeat or Countdown and up options (for elapsed race time).
Separate fast access Race and Time mode scrolling
Water resistant to 5 ATM (50m/150ft)
STANDARD Features including:
Time, hours/minutes/seconds - 12 or 24hr format
Month/Day or Day/Month format
Daily alarm
Chronograph - Including hours and time of the day
Luminescent backlight
Battery saving mode - light can be turned off
Shock resistant
Durable, ultra-clear mineral crystal lens
Comfortable and secure silicon band
Reinforced polycarbonate case
50mm (2") diameter face
Oversized 13mm (1/2") digit display
Textured easy-find buttons
Stainless steel buckle with silicon band retainer
Stainless steel back
Innovative Race Functions with Bold New Styling
Ronstan’s ClearStart™ race timer and watches combine contemporary styling with true sailing functionality. They feature large buttons, easy to read displays and advanced intuitive programming designed specifically with the racing sailor in mind. Developed with input from some of the world’s top sailors, ClearStart™ watches and timers are sure to set the standard for years to come. If you’re looking for a simple competitive edge, the difference is ClearStart™.
Large Quick View Displays
The entire ClearStart™ range features oversized digit displays for easy viewing. The Race Timer presents huge 16mm (5/8”) numbers that can be easily viewed by the crew when mounted to the boom or mast base. The 50mm Sailing Watch displays only slightly smaller 13mm (1/2”) digits, which can be quickly viewed at a glance without taking your hand off the helm, and the compact 40mm Sailing Watch still has impressive 10mm (3/8") digits.
Race Sequence Resynchronisation
All racing sailors know how hard it can be to get the watch going at the exact second the start sequence is commenced. With the handy SYNC function, you can quickly resynchronise the ClearStart™to the official race time. A simple press of a button allows you to drop down to the next minute, allowing you to get your starting sequence back in perfect SYNC at the next opportunity.
Pre-programmed Race Sequence Sounds
The intuitive ClearStart™ sound signals let you know exactly where you are in the start sequence without looking at the display. Pre-programmed with World Sailing 5-4-1-0 and Match Racing start sequences, it can also be programmed for other countdown sequences by the user. Sound signals can be turned off if desired.
End of Sequence - Countdown or Count Up
Depending on the user’s preference, the watch can be set up to auto repeat the countdown at the end of the sequence for general recall restarts, or to start counting up to track elapsed time.
Multi-line Display with Real Time
No need to switch between countdown and time modes because the actual time is displayed below the countdown time on the new multi-line ClearStart™ display.
Daily Life Functionality
From waking up for work to working out, a ClearStart™ watch is also great for everyday activities. Standard modes include 12 or 24 hour time format, date in day/month or month/day format, daily alarm and chronograph (stop watch).
Luminescent Backlight
Bright, full-face electroluminescent backlighting is easy to read at night and can be turned on temporarily for a quick view.
Water and Shock Resistant
Designed to survive the rigors of competitive sailing, ClearStart™ watches and timers are water resistant rated at 5ATM and highly shock resistant.
Features:
Innovative Race Functions with Bold New Styling
Ronstan’s ClearStart™ race timer and watches combine contemporary styling with true sailing functionality. They feature large buttons, easy to read displays and advanced intuitive programming designed specifically with the racing sailor in mind. Developed with input from some of the world’s top sailors, ClearStart™ watches and timers are sure to set the standard for years to come. If you’re looking for a simple competitive edge, the difference is ClearStart™.
Large Quick View Displays
The entire ClearStart™ range features oversized digit displays for easy viewing. The Race Timer presents huge 16mm (5/8”) numbers that can be easily viewed by the crew when mounted to the boom or mast base. The 50mm Sailing Watch displays only slightly smaller 13mm (1/2”) digits, which can be quickly viewed at a glance without taking your hand off the helm, and the compact 40mm Sailing Watch still has impressive 10mm (3/8") digits.
Race Sequence Resynchronisation
All racing sailors know how hard it can be to get the watch going at the exact second the start sequence is commenced. With the handy SYNC function, you can quickly resynchronise the ClearStart™to the official race time. A simple press of a button allows you to drop down to the next minute, allowing you to get your starting sequence back in perfect SYNC at the next opportunity.
Pre-programmed Race Sequence Sounds
The intuitive ClearStart™ sound signals let you know exactly where you are in the start sequence without looking at the display. Pre-programmed with World Sailing 5-4-1-0 and Match Racing start sequences, it can also be programmed for other countdown sequences by the user. Sound signals can be turned off if desired.
End of Sequence - Countdown or Count Up
Depending on the user’s preference, the watch can be set up to auto repeat the countdown at the end of the sequence for general recall restarts, or to start counting up to track elapsed time.
Multi-line Display with Real Time
No need to switch between countdown and time modes because the actual time is displayed below the countdown time on the new multi-line ClearStart™ display.
Daily Life Functionality
From waking up for work to working out, a ClearStart™ watch is also great for everyday activities. Standard modes include 12 or 24 hour time format, date in day/month or month/day format, daily alarm and chronograph (stop watch).
Luminescent Backlight
Bright, full-face electroluminescent backlighting is easy to read at night and can be turned on temporarily for a quick view.
Water and Shock Resistant
Designed to survive the rigors of competitive sailing, ClearStart™ watches and timers are water resistant rated at 5ATM and highly shock resistant.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Great read for students
Format: Paperback
Studying cybersecurity, I thought "Black Hat Python, 2nd Edition" by Justin Seitz and Tim Arnold was quite helpful. This book makes difficult ideas far simpler by combining theory with practical examples. The revised material maintains it current given the cybersecurity issues of today. The practical uses it goes over, such as scraping and sniffing, which are essential skills for anyone working in the field. Whether you're brand-new or seasoned, the simple explanations make it easy to follow. Any student studying cybersecurity should not miss this book since it provides the ideal combination of knowledge and useful abilities through guided projects.
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Reviewed in the United States on June 4, 2024
★★★★★ 5
Python cybersecurity
Format: Paperback
Best book for entry level cybersecurity professional new to python.
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Reviewed in the United States on September 6, 2025
★★★★★ 4
The book is simply perfect. Very good book. Problem with shipping.
Format: Paperback
The book is simply perfect. Good book and good practical contents, complex, but direct at the same time with what it has to say. Very useful if you want to learn Python but from the point of view of a Hacker or Pentester.
There was a problem with the shipping, it was solved, but I received the book days later and for a few hours the book was lost, and the shipping agency couldn't track it, and they didn't know where it was. Luckily in the end it was fixed and I received it a few days later.
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Reviewed in the United States on August 23, 2024
★★★★★ 5
Tough read for a newbie
Format: Paperback
To start off, I am not the world’s best at writing code. I do have a low level understanding of the concepts and can figure out (with a longer amount of time) how to get some of the code functional.
With this in mind, this book (if your a beginner or struggle with Python) is going to be a tough read and hard to practice. Its pseudocode is solid and makes the coding easier but you need to beware of pythons syntax differences between the different versions when you are using this. (This is something I struggle with).
I am beyond happy with this book, albeit there are typos and errors inside it but I think it’s solid for practice in this field.
Coming from a nontechnical profession, having the concepts explained and taken out from theory into working practice helps understand the practical side of doing something like this.
Despite being a tough read, i have the frame of mind that ethical hacking and program development is not for a total newbie and some experience is needed for maximum efficiency.
Hope this helps!
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Reviewed in the United States on June 23, 2024
★★★★★ 5
💯 just buy
Format: Paperback
Hey guys I'm a im an E-black belt now
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Reviewed in the United States on March 22, 2026