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

§ 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

  1. Wrap a flexible tape or paper strip snugly around your wrist bone.
  2. Keep it flat, not tight. Note the circumference.
  3. 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.

Price

£250