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Official UK Authorised Retailer
Full Manufacturer Warranty
Free Delivery
30 Day Returns
Customer Service & Technical Support
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The Mondaine Numeri 42mm Silicone Rubber Watch MSN.42120.RB makes an immediate impact with its 42mm stainless-steel case framed by a distinctive 12-sided fixed bezel, where bold numerals enhance both readability and visual character. Its clean black dial is anchored by contrasting hands and the iconic red seconds hand a hallmark of Swiss design, all protected beneath an anti-reflective sapphire crystal that ensures clarity in varied lighting conditions. This watch balances sporty intent with refined Swiss appeal.
The Numeri collection brings Mondaine’s heritage of Swiss precision into a contemporary context, blending functional simplicity with modern styling cues. The combination of a geometric bezel, durable materials and purposeful design makes it suitable for everyday wear as well as more active pursuits.
Clean and Legible Dial
The striking black dial is uncluttered yet expressive, with clearly defined indices and the signature red seconds hand that enhances legibility at a glance. Super-LumiNova® on the hands ensures visibility in low light.
Reliable Quartz Movement
Powered by a Swiss quartz movement Ronda 713, the Numeri delivers dependable timekeeping with low maintenance ideal for daily wear.
Robust Build & Everyday Water Resistance
Crafted from brushed and polished 316L stainless steel, the case is built for resilience, while the sporty black silicone strap adds comfort and versatility. With water resistance up to 100 metres (10 ATM), this Swiss Made watch is ready for rain, splashes and surface water activities.
Sport-Inspired Comfort
The supple black silicone strap complements the watch’s dynamic profile and secures comfortably for all-day wear. Together with the screw-down crown and solid case back, it emphasises practicality without detracting from the timepiece’s refined aesthetic.
A Modern Swiss Classic
The Mondaine Numeri MSN.42120.RB is an engaging choice for those who appreciate clarity, reliability and contemporary design rooted in Swiss watchmaking tradition. Its bold presence, practical performance and versatile styling make it suitable for daily wear, active days or as a distinctive addition to a versatile watch collection.
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UK Delivery
| Selling Price | Royal Mail 48 (Tracked) |
Royal Mail 24 (Tracked & Signed) |
Special Delivery Next Day (Mon – Fri) |
Special Sunday Delivery (Before Sat 12pm) |
Royal Mail Special Delivery by 1pm |
|---|---|---|---|---|---|
| £0 to £99.99 | FREE | £4.99 | £7.99 | £7.99 | £9.99 |
| £100 to £499.99 | N/A | FREE | £7.99 | £7.99 | £9.99 |
| £500 or more | N/A | N/A | FREE | £7.99 | £9.99 |
We know your order is important to you, so we use Royal Mail’s tracked delivery service on all UK orders.
We also offer Royal Mail Special Delivery service, which for an additional fee offers guaranteed delivery the next day before 1pm.
*Royal Mail Tracked 24 and Royal Mail Tracked 48 services are 98% accurate but not guaranteed.
Orders placed before 5pm (Monday–Friday) are dispatched the same day. Orders placed on Saturday or Sunday are dispatched the following Monday.
International Shipping & Duties (Delivered At Place – DAP)
We’re pleased to offer worldwide delivery with fully tracked and insured shipping.
How international orders work
All international orders are shipped on DAP (Delivered At Place) terms. This means:
- The price you pay at checkout covers your goods and international shipping only.
- WatchNation does not collect or charge any overseas sales tax, import VAT, or customs tariffs (duties).
- When your order reaches your country, local customs authorities may apply:
- Import VAT (value-added tax),
- Tariffs or customs duties (import taxes based on product category and value), and
- Handling or clearance fees from the courier.
These charges are set by your country’s customs authority and are payable by you before delivery.
You’ll be contacted directly by DHL with a secure link to pay any applicable charges. Once cleared, your parcel will be released and delivered promptly.
Estimated delivery times (after dispatch)
- European Union: approximately 2–5 working days
- Rest of World: approximately 5–7 working days
Customs processing times vary by country and may extend delivery slightly.
If import charges, tariffs, or duties are not paid
If local charges are unpaid or delivery is refused, the shipment will be returned to us. In this case, we will refund your order minus the outbound shipping cost and any return or customs fees billed to us by the carrier.
Estimating import costs
Import VAT and duty rates vary by country. You can check estimated import taxes and tariffs by contacting your local customs authority or using your government’s online import calculator.
More about delivery...

Need help?
Frequently Asked Questions
Yes — we are an Authorised Dealer for every brand we sell. All watches come with an official box, papers, and a full manufacturer’s warranty.
Every watch includes a manufacturer warranty. You’ll find more warranty info listed in the product description.
Orders placed before 5pm (Mon–Fri) are dispatched the same day. Order before 12pm on Sat for same-day dispatch. Free UK delivery is available on all orders, and tracking details are provided once shipped.
Yes — you have 30 days from delivery to return or exchange your item, provided it’s unused and in its original packaging.



