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The Ekranoplan 6S21-546A508 pairs an uncoated steel case with a black dial and red chronograph accents. This version is fitted with a blue silicone strap, adding a strong blue contrast to the steel and black watch head.
The Miyota 6S21 quartz movement combines time and date with a 60-minute chronograph. Its central chronograph seconds hand works alongside an elapsed-minute register and a separate running-seconds display. The two registers sit above the prominent six.
Tritium micro gas lights provide low-light illumination without needing prior exposure to light. K1 crystal with anti-reflective coating covers the dial, while the screw-in crown and solid caseback form part of the 200m-rated case construction.
The case measures 47mm across and 16mm thick, with a 25mm strap fitting. The pictured blue silicone strap is the configuration offered here. The Ekranoplan collection takes inspiration from the extraordinary ground-effect craft designed to travel just above the water.
| Reference | 6S21-546A508 |
|---|---|
| Store SKU | 6S21-546A508 (BLU) |
| Movement | Miyota 6S21 quartz chronograph |
| Functions | Time, date and 60-minute chronograph |
| Case | Uncoated stainless steel |
| Dimensions | 47mm diameter × 16mm thick |
| Dial | Black with red accents |
| Crystal | K1 with anti-reflective coating |
| Illumination | 21 tritium micro gas lights |
| Crown / caseback | Screw-in crown / solid back |
| Water resistance | 200 metres / 20 bar |
| Strap | Blue silicone; 25mm fitting |
Keep the crown fully secured before contact with water, and do not operate the crown or chronograph pushers while the watch is wet. Keep leather straps dry. After swimming with a suitable strap, rinse the watch with fresh water and dry it. Avoid hot tubs and saunas, and follow the manufacturer’s servicing and water-resistance guidance.
We individually inspect watches before dispatch as part of our quality assurance process. Please normally allow 5–7 working days for dispatch, with delivery time additional.
Watch orders use a tracked service. Standard delivery is £4.99 per order, subject to applicable restrictions. See our delivery information for full details.

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Get yours while you can.