RATIO FreeDiver Helium-Safe Dive Watch Sapphire Crystal Automatic Diver Watch 1000M Water Resistant Diving Watch for Men

What a bargain ! great looking dive watch with helium valve . I use it in a medical hyperbaric chamber so haven't got it wet yet, but it keeps great time and is not to heavy. It appears to be well made and has a solid feel to it which I like. The luminosity is great and its easy to ready at night especially if its been in a bright place during the day. It claims to be 1000m waterproof I cant comment on that but I would be comfortable and will be recreational and tech diving with it ,

Why did you choose this product over others?: I like the look of this watch,and it keeps very good time,also the day and date are easy to read and there a illuminated markers for the hours.

£130 just about right. I has the mark 2 version (not sure what the difference is). Good points- watch feels well built (in an industrial way). I wear it as everyday wear and it a big ‘man’s watch’ that you don’t have to worry about. Sapphire crystal looks good and despite previous reviews. I have found the time keeping on mine excellent. Not so excellent is the lume. Which strangely. Is championed in other reviews?!. Lyme strays off bright and faded very, very quickly. I appreciate it’s not going to be seiko or citizen standard, but is not as good as the Chinese watches I have either. The rubber dtrap is in keeping with the watch, however the little things that the strap tucks in to broke very easily. I had to replace them with some from a different watch I have. All in all. You get what you pay for. Worth the money if you’re going to wear it everyday. It’s a real friend on your wrist, that will stick with you through anything. Like all friends- it’s not perfect. Comfy watch for its size.

Looks like a great watch and it's heavy, but returned it without using as I didn't know my wife had already purchased me a Tag Heuer watch.

Ratio of quality to price: Designed by Italians, soli Seiko movement. Sturdy divers watch, Safire glass. Company? Singapore? So, what? That’s life now. Anything beautifully designed, is eventually produced in Asia.

Lovely watch nice to wear would have definitely given it 5 stars but don’t know if I was the unlucky one but it’s loses about 1 minute a day

Excellent,,solid build quality,perfect size ,keeps perfect,,,illumination on dials is superb at night ....very impressed,,,for the money as well ,superb

Beautiful looking watch with very good luminosity but unfortunately the timekeeping is poor and it loses about two minutes a day so I wouldn’t really recommend this unless you’re happy to reset the time each day

bell'orologio da immersione di fattura robusta. Il movimento è preciso.

Just got my Free Diver Ratio 1000 m Helium Safe Automatic, the screw down crown is amazing and for a minute I was wondering how to get the watch initiated. Its a safe guard system and once released you can adjust the date day and time and hacking helps catch the seconds. Today the 18th Sept '25 my Ratio 'PI' watch arrived from amazon aand it is the first day of time keeping with it, so let's see how the watch movement delivers . The lumen is the best among all my watches, almost blue fluorescence and the dial is rather more Saffron in color and a beautiful Sunburst dial. Ratio does not have a service centre but it should be able to be serviced by local professional watch keepers! Will update this review after a good use of the watch

Nice white dial, decent weight, no issues so far,decent price, especially for the specs you get, very happy.

Excelente reloj, tamaño, peso, correa, mecanismo, colores, funcionalidad, estética muy muy bien, superó mis expectativas...si duda es de colección...y recomendable...

I found it impossible to not fall in love with this watch. This watch delivers beauty, functionality, precision, robustness and lumes galore. Granted, I could have waited months or years to leave a proper review, but given that the watch may not even be available years from now, I can only update this review at a later date if something changes. This watch either gains 0 seconds, or 0.5 seconds in the few days I have worn it constantly, including showers, dish-washing, sleeping, but alas, not diving yet. The precision blows my mind. I do have a 20 years old Eco-drive that basically keeps atomic time (no radio) and to get this kind of precision on an automatic is either luck or the stuff of legends. As others have stated before me, this watch is a tank. It even looks like a melted tank. Everything is so precise and gorgeous, including the bezel action. Simply delicious sound as you rotate it and it comes to a fully centered state. The lume, as imaged, I took from inside a closed closet and adjusted the camera to image as close to what my eye sees. The lume lasts through the whole night, all the way to the morning hours and is easily readable even then. I don't do anything special to charge it. The image was taken after 5 seconds exposing to direct sunlight, but even in office light, and then going to bed, it just shines, almost like it is an LED. Simply remarkable. There is no question that the watch can easily be upgraded to be even more gorgeous but clearly that would increase the cost without increasing functionality, and this watch is incredibly functional. Now, the silicon straps that it came it, I replaced with the nylon straps, but those too are far too short. If you have large wrists, like I do, I barely get to the very first hole without cutting the blood circulation and that is annoying and has nothing to do with the watch itself. It is also nearly impossible to get XL canvas or nylon straps (non Nato) from Amazon. Many brands say they have XL versions, but no option to select during ordering. So I wonder if this watch could survive for however long on the surface of Venus, with surface atmospheric pressure of about 92 bars and 600 degree Fahrenheit temps. Both the melting point of sapphire and steel are much higher, so who knows :)