Seiko Releases September 2025
Tom Cox takes us Seiko's latest and greatest from the busy month of September
Mosaic CTS Rubber Watch Strap - Aqua Blue
- Regular price
- £98.00
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Mosaic CTS Rubber Watch Strap - Aqua Blue
Selected Colour: Aqua Blue
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Jet Black
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Navy Blue
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Chocolate Brown
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Storm Grey
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Powder Blue
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Military Green
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Spanish Orange
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Candy Pink
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Tomato Red
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Aqua Blue
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Ice White
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Canary Yellow
- Regular price
- £98.00
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- Sale price
- £98.00
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- per
5 in stock
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Best Selling Rubber Watch Straps
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- £68.00
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- £68.00
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- £68.00
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- £68.00
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- £68.00
- Regular price
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- Sale price
- £68.00
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- Regular price
- £68.00
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- £48.00
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- £48.00
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Best Seller
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£144.00 - Sale price
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- Regular price
- £68.00
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- Sale price
- £68.00
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Introducing the WatchGecko Mosaic Cut to Size (CTS) Rubber Watch Strap, designed with a bold modern look and engineered for all-day adjustability, this strap combines dependable performance with an expressive edge - ideal for those who want their watch to stand out as much as it fits in. Its CTS construction allows for a truly tailored fit: simply trim the strap using the eight notches on each side, spaced at 4mm intervals, to match your wrist perfectly.
Paired with a spring-loaded leaf buckle that offers fine-tuned micro-adjustment, delivering one of the most adaptable and wrist-friendly fits in our rubber watch straps line-up. Crafted from stainless steel, the buckle features a combination of brushed and polished finishes for a refined look. It’s left unbranded to maintain the strap’s clean, modern aesthetic and keep the focus on your watch.
The Mosaic’s namesake texture features a subtle grid of micro-squares that reflect light like real mosaic tiles, adding depth and a dynamic finish as your wrist moves. Whether you're drawn to standout details or understated style, the Mosaic offers something refreshingly different. Along with the integrated quick-release spring bars make installation tool-free and effortless, while the spring-loaded leaf buckle offers micro-adjustability for on-the-go fine-tuning.
If you need to remove the quick-release spring bars, then you can learn how to easily remove quick-release spring bars in our video.
Key Features
- Quick-Release Spring Bars - Designed for convenience
- Modern Rubber Construction - Durable, flexible, waterproof at just 3mm, this strap moulds to the wrist with ease for all-day wear.
- Micro-Adjustment Sprung Buckle - Offers a slim profile with impressive flexibility-enjoy fine-tuned comfort and a sleek, minimal look.
- Mosaic Tile Pattern - A refined texture of micro-squares that catch and reflect light, adding subtle depth and a dynamic visual finish
- Flexible Length - Trim-to-fit design allows a wide adjustable range from 72mm to 214mm, makes it ideal for small to large wrists.
Sizing The Mosaic CTS
Getting the perfect fit is easy with the Mosaic’s Cut-to-Size (CTS) system. Start by removing the spring-loaded buckle using a spring bar tool. On the underside of each strap section, you’ll find eight clearly marked notches, each spaced 4mm apart. Trim one notch at a time, checking the fit as you go to avoid over-cutting.
Once trimmed, reattach the buckle and use the built-in micro-adjustment mechanism to fine-tune the final fit. This combination of CTS trimming and micro-adjustability ensures a secure, custom fit with a clean, professional finish - no excess, no bulk, just comfort.
Prefer a visual guide? Watch our video, how to cut a rubber watch strap the right way, for a step-by-step visual guide to sizing your Mosaic CTS strap safely and accurately.
Strap Taper
| Lug Width | 20mm | 22mm |
| Buckle Size | 16mm | 18mm |
| Clasp Finish | Brushed / Polished |
|---|---|
| Clasp Material | Stainless Steel |
| Clasp Type | Butterfly Spring Loaded |
| Number of Watches | Adjustable |
| Other Fittings | Quick Release Spring Bars |
| Strap Length | 72mm (min) / 214mm (max) |
| Strap Material | Rubber |
| Strap Material Colour | Aqua Blue |
| Strap Material Finish | Mosaic |
| Strap Material Type | Rubber |
| Strap Style | Cut to Size |
| Strap Thickness | 3mm |
Size Guide
The ‘lug width’ is simply the internal width measured between the lugs (where the watch strap fits) of the watch.
Why choose WatchGecko?
- Over a decade of experience.
- An internationally renowned destination for watch enthusiasts.
- A trusted choice for new buyers entering the world of horology.
- Our passion for watches inspires us to craft straps that enhance timepieces, blending style and functionality seamlessly.
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