Zenith Chronomaster XXT Open

$6,500

Ref
03.1260.4021/02.C505
Year
2018
Case
45mm
Condition
Pre-owned
Box
Original
Papers
Original

In the early 1970s, the Swiss watch industry was ordered to abandon mechanical movements in favor of quartz. A Zenith engineer named Charles Vermot refused. He gathered the El Primero's tooling, blueprints, and components and hid them behind a false ceiling in the Le Locle manufacture attic, concealing them until the crisis passed. That act of defiance saved the world's first automatic integrated chronograph, and the Chronomaster XXT Open exists as a direct tribute to what was preserved. The 45mm stainless steel case carries calibre 4021, a descendant of that original movement, beating at 36,000 vph for 1/10th second precision that conventional chronographs cannot match. The Open treatment cuts away a portion of the silver dial at 9 o'clock to expose the escapement in motion, the balance wheel visible and swinging with a cadence that makes the complication tangible rather than theoretical. Roman numeral hour markers, a power reserve indicator, and chronograph functions complete the picture. The sapphire caseback reveals the full movement. On the black alligator strap with steel deployant buckle, it carries the weight of that story lightly. 2018 production, impeccable condition, box and papers included.

Specifications

Listing

Stock ID 151YK
Reference 03.1260.4021/02.C505
Condition Pre-owned
Included Items Watch with original box and papers
Year 2018

Case

Case Diameter 45mm

Dial & Movement

Movement Automatic

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129 buyer reviews
  • “Smooth process and the watch was delivered in the condition advertised. Would happily buy from this seller again.” — Verified buyer
  • “Phenomenal transaction! Watch exactly as described. Would definitely do business with this dealer again.” — Verified buyer

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Buyer reviews

Verified feedback from collectors who have purchased through The Tempus Order.

2019 Glashütte Original Senator Excellence Panorama Date Moon Phase 40MM Silver Dial Steel Bracelet (1-36-04-01-02-70)
2019 Glashütte Original Senator Excellence Panorama Date Moon Phase 40MM Silver Dial Steel Bracelet (1-36-04-01-02-70)

“The watch was exactly as described and exceeded my expectations once I got it on my wrist. Gabe was an excellent seller—very knowledgeable, responsive, and clearly passionate about watches. He has a thoughtfully curated collection and made the entire transaction smooth and enjoyable. I definitely won’t be a stranger when it’s time to add another piece to my collection. Buy with confidence. Thank you, Gabe!”

Verified buyer 05/26/2026
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“Watch was rated as "very good" by authentication center, but after examining it under a 10x loupe, I can't understand how it wasn't rated as "like new." Not a single sign of wear that I could see. Very pleased with my seller; we had a pleasant and reasonable negotiation after my high bid was below his reserve, and reached a price we were both comfortable with. The watch is exactly as he described. A++++ seller.”

Verified buyer 02/09/2026
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