Oyst Mod - Ocean Blue

The Oyst Mod Ocean Blue is a classic sport bracelet Seiko mod built around the Oyster-style three-link bracelet that has defined the look of the quintessential sport watch for decades. Available in 36 mm and 39 mm, it covers the two most popular case sizes for modern collectors — 36 mm for those who prefer a vintage-accurate wrist fit, 39 mm for those who want contemporary proportions without going oversized. The ocean blue dial brings freshness and energy to a silhouette that might otherwise play it entirely safe.

Movement

The Seiko NH35 automatic movement powers both size options — hacking seconds hand, hand-winding, approximately 41 hours of power reserve. The NH35 is one of the most extensively field-tested automatic movements in watchmaking, known for its reliability and serviceability. Super-LumiNova on the indices and hands means the ocean blue dial stays readable after dark as well as in daylight. MedoMods regulates each watch before it ships.

Case & Crystal

Both the 36 mm and 39 mm versions feature the same stainless steel construction, sapphire crystal with Super-LumiNova, and screw-down crown with 5 ATM water resistance — the package stays consistent across sizes. The Oyster-style stainless steel bracelet with safety folding clasp adjusts for a secure fit without tools in most cases. The build is robust enough to be a daily driver without treating it delicately.

Dial & Design

Ocean blue sits at the vivid end of the blue spectrum — not the deep midnight of a formal dress watch, but the lively, saturated blue of open water. On the Oyst Mod silhouette, this works especially well: the case shape and bracelet are already doing the classic work, and the ocean blue dial adds a colour-forward identity that stops the watch from looking like a generic sports piece. The bracelet and case combination reads as polished sport, which is exactly what the Oyst Mod aims for.

On the Wrist

The two size options give genuinely different wearing experiences. The 36 mm reads as a dressy sport watch — compact, proportionate, comfortable in formal settings. The 39 mm is the all-day wear choice: present on the wrist, clearly sporty, fits under shirt cuffs without forcing. The Oyster bracelet in either case is one of the most comfortable three-link designs in the mod world.

Why MedoMods

Hand-assembled by MedoMods. Real NH35, real sapphire, the Oyster bracelet architecture done right. Worldwide shipping with tracking – within the EU with no customs fees. A properly built classic sport bracelet Seiko mod in a colour that gives it genuine character.

• 36 mm or 39 mm stainless steel case – robust yet elegant

• Automatic Seiko NH35 movement – reliable and precise

• Sapphire crystal with Super-LumiNova – clear visibility and excellent readability

• Screw-down crown & 5 ATM water resistance – suitable for everyday wear

• Stainless steel Oyster bracelet with safety folding clasp – comfortable and modern

Ordering and delivery

• Every watch comes with a 2-year warranty from delivery. It covers manufacturing defects and functional problems under normal use. It doesn't cover scratches, damage from opening the watch, or water damage.
• 10–12 days after ordering
• 14-day withdrawal period. The period starts on receipt. For deliveries to the UK, US and Australia, we offer 14-day returns.