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Chronomaster Open 39.5mm

$21,300.00 $24,495.00 Save $3,195.00
Noble Metal
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Offering a view of the beating heart of the El Primero Presented in a luxurious 39. 5mm 18K rose gold case Matte silver dial with tri-colour counters and a transparent counter Measures and displays elapsed time with 1/10th of a second precision Driven with precision by the iconic El Primero 3604 movement A GLIMPSE OF THE MOVEMENT WITHIN Bridging the past and present, the Chronomaster collection embodies the brand’s mastery of automatic, high frequency chronograph movement and the unique design language established over the course of 50 years. The Chronomaster Open exposes the beating heart of the El Primero movement in an unexpected way. THE HEART OF PRECISION Revealing the iconic movement hard at work within, this striking model features an open base plate and bridges, as well as an escape wheel and pallet lever crafted in lubricant-free silicone. Beautifully presented within a 39. 5mm 18K rose gold case, the matte silver dial makes a bold statement with three counters - a 60-minute counter at 6 o’clock, 60-second counter at 3 o’clock, and transparent counter for the running seconds. Ensuring flawless precision, this confident timepiece is accurate to 1/10th of a second and offers a 60-hour power reserve. A blue calfskin leather strap complements the luscious rose gold tones of the case.

Product Name Chronomaster Open 39.5mm
Item Code / SKU 18.3300.3604/69.C922
Category Rings
Subcategory Stone Shape Swatches
Availability In Stock • Available Online

Frequently Asked Questions: Chronomaster Open 39.5mm

Find details regarding authenticity, materials, sizing, and care tailored to this piece.

Yes. All diamonds and gemstones are strictly inspected and graded by certified gemological standards. Every purchase includes an official Certificate of Authenticity detailing stone grades and precious metal purity.
This piece is crafted in Solid Gold & Sterling Silver. We also offer bespoke crafting in 10K, 14K, 18K Solid Yellow Gold, White Gold, Rose Gold, or Platinum upon request. Every piece carries official hallmark stamps guaranteeing genuine metal purity.
Yes. We offer standard US ring sizes from 4.5 through 10, as well as custom half and quarter sizes. We also provide complimentary 60-day ring resizing so your ring fits comfortably and securely.
Clean gently at home using warm water, mild soap, and a soft-bristled brush, then pat dry with a lint-free cloth. Avoid exposure to chlorine, bleach, household cleaners, and perfumes. Store your jewelry in the complimentary luxury presentation box when not being worn.
Your order includes complimentary 100% fully insured express courier shipping with signature confirmation, discrete luxury gift packaging, a 30-day money-back satisfaction guarantee, and a lifetime warranty on metal casting and stone setting craftsmanship.
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