Black Steel MTDelta Open Heart Watch

The Watch

The Maison du Temps watch captivates at first glance with its clean lines and boldly contemporary silhouette. Housed in a 316L stainless steel case, it unites durability and sophistication - a material celebrated for its resilience and lasting finish. The octagonal case shape lends this model undeniable originality while remaining classic and timeless. Finished with a blend of polished steel and satin-brushed steel, the case strikes a perfect visual balance that instantly catches the eye. At 40.00 mm in diameter and 12.00 mm thick, the watch offers harmonious proportions that suit most wrist sizes. The flat sapphire crystal, renowned for its strength and exceptional scratch resistance, ensures optimal dial visibility and holds up effortlessly to everyday wear. The generous weight of 175.00 g delivers a reassuring, substantial presence on the wrist - there, but never overwhelming. The watch's transparent screw-down caseback is an invitation to admire the internal movement, giving the wearer a glimpse of the intricate mechanics that power this timepiece.

The Dial

The dial stands out with its open-heart finish, offering an enticing view of the internal movement. Black in color with a matte finish, it draws in light subtly without creating distracting reflections - ensuring easy legibility in any lighting condition. Luminescent hands and indices guarantee perfect readability even in the dark, a remarkable asset for those who demand both functionality and elegance. The dial also features a minute track surrounding the indices, underscoring the precision and rigor of fine watchmaking. Perfect for complication enthusiasts, this model incorporates a 60-second counter. Every element of the dial is designed to elevate the watch's prestige and delight the eye of the wearer.

The Movement

At the heart of this watch beats an automatic Miyota 82S5 caliber movement. Recognized for its reliability and precision, this caliber oscillates at a frequency of 21,600 vph (3 Hz), delivering consistent and continuous timekeeping. Its robust construction provides a power reserve of approximately 40 hours, offering ample autonomy for everyday wear. The rotor, visible through the transparent caseback, is a tribute to the watchmaking mechanism working in perfect, silent harmony. Functions include hours, minutes, and a 60-second counter that adds a technical and refined dimension.

The Bracelet

The bracelet is crafted in 316L stainless steel, perfectly matching the case's tone and elegance with just the right balance of strength and lightness. Prized for its longevity and weather resistance, it retains its luster through a brushed and polished finish that integrates seamlessly with the rest of the watch. The lug width of 20.00 mm ensures a smooth, continuous connection between case and bracelet for a fully integrated look - no aesthetic break, just clean, sophisticated transitions. Secured by a silver-tone deployment clasp, the bracelet closes securely while opening quickly and effortlessly. It's the ideal fastening for watch enthusiasts who want to get the most out of their timepiece without sacrificing everyday comfort.

Water Resistance

With water resistance to 10 ATM - equivalent to the pressure at a depth of 100 meters - this watch is a genuine technical achievement for a design this sleek. It provides solid protection against immersion during light water activities, though for deeper dives, a purpose-built diving watch is recommended. Equipped with a screw-down caseback and a screw-down crown, this piece adds an extra layer of assurance in wet environments, minimizing any risk of water infiltration. This technical foundation gives the wearer not just functionality, but total confidence in and out of the water - the mark of a watch that never backs down, no matter the conditions.