Ratio
Ratio FreeDiver GMT Series Sapphire Stainless Steel Black Dial Automatic RTF051 200M Men's Watch
Product Information
Ratio FreeDiver GMT Series Sapphire Stainless Steel Black Dial Automatic RTF051 200M Men's Watch is a stainless steel automatic watch by Ratio, designed for men. The black dial and bracelet are paired with automatic movement, featuring GMT complication and water resistance to 200m. Built for regular daily wear, it transitions easily between casual and formal settings. Ratio's FreeDiver Series Sapphire Stainless delivers dependable timekeeping for regular use across casual and formal settings.
- Movement verified & regulated to spec
- Case, dial & crystal inspected under loupe
- Water-resistance pressure tested
- Serial number & provenance checked
Specifications
- Brand — RATIO
- Model — RTF051
Select Strap
Choose a strap to configure your timepiece.
Price
£340£395
In Stock
Pay in Installments
Estimates — confirmed at checkout.
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-RTF051
- Movement
- Automatic
- Caliber
- Seiko NH34
- 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.
§ Complete the Set
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Price
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