Ratio
Ratio FreeDiver Sapphire Stainless Steel Silver Sunray Dial Automatic RTF048 200M Men's Watch
Special OfferBest Seller
Product Information
<p>Start your underwater adventure with the RTF048 — a watch that feels alive in every dive. Its silver sunray dial catches light like rippling water, reflecting the pulse of the sea with every turn of your wrist. This is a watch built for motion, for currents and caverns, for that moment when you kick off the edge, and everything else fades away. Rugged where it counts, bold where you need it, this is the tool you trust when the ocean calls and the path forward is anything but ordinary.</p>
Authenticated In-House
- Movement verified & regulated to spec
- Case, dial & crystal inspected under loupe
- Water-resistance pressure tested
- Serial number & provenance checked
ConditionChecked & Ready
How we authenticate →Specifications
- Brand — RATIO
- Model — RTF048
Select Strap
Choose a strap to configure your timepiece.
Price
£250£295
In Stock
Pay in Installments
Klarna.3 interest-free payments of £83
Laybuy6 interest-free payments of £42
Estimates — confirmed at checkout.
Authenticated In-HouseFree UK Delivery14-Day ReturnsSecure CheckoutKlarna & Laybuy
Please select a strap first.
§ Macro Study
Up Close — Movement & Dial
High-resolution macro photography revealing the engineering and finishing that define this timepiece.
§ Technical Dossier
- Reference
- WL-RTF048
- Movement
- Automatic
- Caliber
- Seiko NH35A
- Case Material
- Stainless Steel
- Case Diameter
- 40mm
- Water Resistance
- 200m
- Crystal
- Sapphire
§ Size Guide
Find Your Fit
Measure your wrist and we'll recommend the right case diameter, strap length, and strap width — so your timepiece sits perfectly the moment it arrives.
How to Measure
- Wrap a flexible tape or paper strip snugly around your wrist bone.
- Keep it flat, not tight. Note the circumference.
- If using paper, mark the overlap and measure against a ruler.
Wrist Size Calculator
Enter your wrist circumference to size your watch.
Your recommendations will appear here.
§ Complete the Set
You May Also Like
Price
£250






