Belgian-Designed · Automatic
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Manx Blanc
White dial · Serial-numbered
Dial
NoirBlack dial
BlancWhite dial
$795
Includes all US duties · No hidden fees at checkout
Ships October 31, 2026 · Free US shipping · 30-day returns
“I have worn Rolex, Breitling, Omega and so many others. This watch has survived everything, day in and day out. I can’t wait to add more to my collection.”
John D. · Prototype tester · June 2026
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As low as ~$67/mo over 12 months, or 4 interest-free payments of ~$199.
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Wears true to size, comfortable on 6.5"-8" wrists
Limited to 200 pieces, individually numbered
Limited to 200 pieces, individually numbered
The Blanc edition, a 42mm Belgian-designed automatic in a 316L steel case with a polished black PVD finish. Under the domed sapphire crystal: a Japan-made Miyota Cal. 9122 with day and month indicators, and a crisp white ceramic dial with contrasting black subdials and a red racing seconds tip. Hands and markers filled with Swiss Super-LumiNova. Individually numbered on the caseback. 10 ATM. Ships October 31, 2026.
Reserve your serial number
Not ready to pay in full? Hold your Nº for $200.
Reserve your serial number with a $200 deposit — credited in full toward the $795 price. Balance of $595 invoiced before your watch ships. Fully refundable any time before shipment, and transferable between colorways.
First 200 orders (across both dials) include the steel Bracelet, free — a $150 value.
Two watches, one purchase
Ships with a free steel bracelet
First 200 orders receive the 316L black-PVD bracelet ($150 value) alongside the sailcloth strap — swap in seconds, one clasp, quick-release.
The name. “Mercier Prototype” is the brand. The strike-through line through PROTOTYPE in the logo marks that Manx has left the prototype phase and shipped as a finished, production watch.
Also available
Manx Meridian Blanc
Adds day, month & 24-hr complication
See it →
🛡️
5-Year
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Warranty
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30-Day
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