Roger Dubuis Excalibur Biretrograde Calendar
Certified by the Poinçon de Genève, the Excalibur Biretrograde Calendar brings high watchmaking into a 40 mm creation designed for daily wear. At its heart, the RD840 calibre meets the hallmark's 14 finishing criteria, visible through an open dial architecture. The Cosmic Blue dial deepens in layers, from the broad azuré finish of the outer flange to the sun-brushed centre plate, evoking the transition from day to deep sky. Biretrograde hands trace the day and date with immediacy and clarity. In 316L stainless steel, this creation wears easily on the wrist and opens naturally onto the Maison's world.
| Case | Stainless steel |
| Case Size | 40mm |
| Case Back | Transparent case back |
| Dial | Blue |
| Functions | Biretrograde calendar |
| Water Resistance | 10 bar |
| Bracelet | Stainless steel |
Shipping
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Complimentary Two-Day Shipping on purchases over $100. Order processing can take up to 3-5 business days.
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We currently only ship domestically within the United States. Orders ship Monday through Thursday, excluding public holidays, via standard overnight service with signature required, per our insurance policy. Shipping delivery must be confirmed by the recipient in order to ship out the order. If a package is undeliverable and returned to us, additional shipping charges may apply for reshipment.
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Shipping fee for watch straps and accessories is flat $35. Please note: all watch parts are FINAL SALE.
Inspection Upon Delivery
Please carefully inspect your package at the time of delivery. If the outer packaging appears damaged, opened, resealed, punctured, or otherwise tampered with, we kindly ask that you refuse delivery. Please inform the carrier that you are declining the shipment due to suspected damage or tampering.
If possible, take clear photographs of the package—showing the condition of the box, shipping label, and any visible damage or broken seals—before returning it to the carrier.
Please note that by accepting the package, you acknowledge that the outer box appears intact and untampered with at the time of delivery.
Exchanges & Store Credit
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Eligible items may be exchanged or returned for store credit within 3 business days of receipt. No refunds.
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To request an exchange or store credit, contact Customer Service at customerservice@chpremier.com or reply to your confirmation email to initiate the process.
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Items marked “Final Sale”, including all watch parts, promotional/discounted merchandise, and financed purchases (e.g., Affirm, Shop Pay Installments), are not eligible for return, exchange, or store credit.
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Returns due to change of mind or buyer’s remorse will not be accepted.
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Merchandise must be in original, unworn condition, with the protective blue tag attached. Items showing signs of wear, alteration, or damage will not be accepted.
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A shipping and restocking fee applies to all approved returns/exchanges.
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We reserve the right to refuse any return that does not meet the above requirements.
Our online policies may differ from our in-store policies. The above terms apply only to online purchases.
