![Ronstan RF4055 ClearStart 50mm Sailing Watch - Blue/Grey [RF4055B]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/71062XL.jpg?v=1706741664)
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Description
Ronstan RF4055 ClearStart 50mm Sailing Watch - Blue/Grey [RF4055B]RF4055 ClearStart 50mm Sailing Watch Blue Grey Innovative Race Functions with Bold Styling Ronstan has taken the popular 50 mm (2") size and features you love and added more durability, comfort, and ease of use to our design. Ronstans 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
RF4055 ClearStart™ 50mm Sailing Watch - Blue/Grey
Innovative Race Functions with Bold Styling
Ronstan has taken the popular 50 mm (2") size and features you love and added more durability, comfort, and ease of use to our design. 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™.
Features:
- Acrylic lens replaced by mineral crystal lens for improved clarity and durability
- Lens recessed in the case to improve impact resistance
- Glass-reinforced polycarbonate case now more durable
- A more flexible injection molded silicone band, which is more comfortable and more durable
- Lower profile and textured "easy-find" buttons
- Bold styling helps the 50mm ClearStart™ range stand out from the crowd
- Time, hours/minutes/seconds – 12 or 24 hour 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
Specifications:
- Time, hours/minutes/seconds – 12 or 24 hour 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
Race Mode:
- Multiple start sequence options – World Sailing 5,4,1,0, match racing, user set
- SYNChronization function – resynchronize if you start the countdown late
- Multi-line display – start sequence + time
- Loud intuitive countdown and start sound signals
- Countdown repeat, or count down and up (for elapsed race time)
- Separate fast access race and time mode scrolling
- Water resistant to 5 ATM (50m/150ft)
The RF4055 models will have the popular ClearStart™ race sequence functions, as well as daily-life functionality.
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.Specifications:
- Type: Watches
- Box Dimensions: 3"H x 3"W x 5"L WT: 0.2 lbs
- UPC: 9316800574612
Quick Guide (pdf)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
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Product Reviews
★★★★★ 3
Can't turn it off quickly. Charging stand falls over easily.
This Electric Milk Frother Handheld: Wireless Starlight Black comes with three stainless steel mixer attachments, a charging cable, and a stand that holds the frother with magnets. The attachments are friction fit, they are easy to change and stay securely in place. The frother has three speeds, the speed changes by pressing the On button. Which is why I deducted one star. The problem is you can not turn the frother off quickly. You have to either cycle through the speeds, or hold the button for 2 seconds. When making a chocolate drink, I could not turn the frother off when my drink was about to spill and it made a mess. I recommend getting a frother with a momentary on off button that you hold down to keep it running and let off to stop it. I removed a second star because the base of the charger is narrow and light making it easy to fall over. It has to be taped to the counter with double sided tape.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Impressive Power and Convenience Right Out of the Box
I just got this electric milk frother, and after only a few uses I’m already impressed. It has strong, consistent power that turns milk into smooth, velvety foam in seconds — perfect for lattes, cappuccinos, or even mixing matcha. The LED display is a surprisingly premium touch, making it easy to see and switch between speeds.
The fact that it’s rechargeable is a huge plus, and the 3‑in‑1 attachments give it more versatility than most handheld frothers. The charcoal black finish looks sleek and modern, and the build feels solid so far.
Even with just a handful of uses, it’s clear this frother delivers great performance and convenience. A fantastic little upgrade to any coffee routine — definitely a 5‑star start.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
I love it!
Color: Black, Size: Rechargeable
This thing works great! It holds a charge for a long time. I love that it has different attachments. I use it mainly for mixing powder into my drinks. It is very powerful. The speed is adjustable too. It feels good to hold too. It lights up when you squeeze the trigger and when it starts losing charge, the light bar gets shorter. I highly recommend it.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Perfect all-around frother, stand keeps it nice and neat on the counter within easy reach.
Color: Black, Size: Rechargeable
Rechargeable, lightweight, variable speeds and optional whisks all make this the perfect item for your kitchen. You can quickly froth milk for your coffees, whip a small batch of whip cream, and even make mug cakes with the hook attachment. The price is very compatible with the competitors, but the ease of use makes this a top choice.
The variable speeds makes it much better to control than the push button ones. When you let go of the pressure switch it turns off, no need for a dedicated on-off switch. Having the pressure switch on the top makes it extremely easy to use! It fits very comfortably in the hand and with the metal stand, looks quite nice on the counter, ready to use at any time. I highly recommend this InstaWhisk!
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Great product from a great company
Color: Black, Size: Rechargeable
This product works very well. There are several other whips to use also. I absolutely love the cream it makes and that is important so I can enjoy my morning coffee. I used this whisk for quite a while then all of a sudden it stopped working. I wrote to the company to explain. A few days later they sent me a beans new whisk. GREAT item and great company to work with.
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Reviewed in the United States on May 23, 2026