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Longines reinterprets its Ultra-Chron Classic for 2025, refining an archival design to meet the practical demands of contemporary wear
<figure id="attachment_113944" aria-describedby="caption-attachment-113944" style="width: 960px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="wp-image-113944 size-full" src="https://backend.daman.co.id/wp-content/uploads/2025/12/UltraChronClassic_L2.937.4.72.2_BTL_EXT_CMYK_3x4-e1765438018920.jpg" alt="" width="960" height="960" srcset="https://backend.daman.co.id/wp-content/uploads/2025/12/UltraChronClassic_L2.937.4.72.2_BTL_EXT_CMYK_3x4-e1765438018920.jpg 960w, https://backend.daman.co.id/wp-content/uploads/2025/12/UltraChronClassic_L2.937.4.72.2_BTL_EXT_CMYK_3x4-e1765438018920-300x300.jpg 300w, https://backend.daman.co.id/wp-content/uploads/2025/12/UltraChronClassic_L2.937.4.72.2_BTL_EXT_CMYK_3x4-e1765438018920-150x150.jpg 150w, https://backend.daman.co.id/wp-content/uploads/2025/12/UltraChronClassic_L2.937.4.72.2_BTL_EXT_CMYK_3x4-e1765438018920-768x768.jpg 768w" sizes="auto, (max-width: 960px) 100vw, 960px" /><figcaption id="caption-attachment-113944" class="wp-caption-text">The Longines Ultra-Chron Classic</figcaption></figure>
Nearly six decades after introducing the innovative Ultra-Chron collection, Longines pays tribute to its trailblazing spirit with the new Ultra-Chron Classic. This latest release blurs the line between archival reverence and modern mechanical achievement.
Visually, the Ultra-Chron Classic is a love letter to the late ’60s. It captures the iconic design of its predecessor with a domed silver sunray dial that plays with light in a way few modern reissues manage. The details are exacting: applied silver-polished indices, the applied winged hourglass logo and a trapezoidal date aperture at 3 o’clock featuring the original vintage typeface.
Longines offers this piece in two sizes: a contemporary 40mm and a historically sympathetic 37mm, the latter paying direct homage to the 1967 original’s 35mm proportions. With a case thickness under 11mm, it seamlessly slips under a cuff with the ease of a dress watch yet retains a quietly robust character.
<figure id="attachment_113941" aria-describedby="caption-attachment-113941" style="width: 698px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-full wp-image-113941" src="https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.2_SOL.jpg" alt="" width="698" height="1280" srcset="https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.2_SOL.jpg 698w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.2_SOL-164x300.jpg 164w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.2_SOL-558x1024.jpg 558w" sizes="auto, (max-width: 698px) 100vw, 698px" /><figcaption id="caption-attachment-113941" class="wp-caption-text">Overhead view of the Longines Ultra-Chron Classic</figcaption></figure>
On the reverse, the technical artistry continues. At the heart of this revival beats the exclusive Longines caliber L836.6, a high-frequency movement first introduced in 2022 that honors the brand’s precision legacy while integrating modern innovations. The movement operates at 36,000 vibrations per hour, or 5 Hz—just as the original Ultra-Chron did—and includes a silicon balance spring alongside advanced materials that deliver magnetic resistance ten times higher than the requirement set by ISO 764.
What makes this even more remarkable is that the Ultra-Chron Classic’s precision credentials exceed conventional chronometer standards. Unlike standard certification processes that evaluate only the movement, this watch has earned complete chronometer certification from the Observatoire Chronométrique de Genève, represented by the TIMELAB foundation.
<figure id="attachment_113942" aria-describedby="caption-attachment-113942" style="width: 1064px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-full wp-image-113942" src="https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.6_FACE.jpg" alt="" width="1064" height="1280" srcset="https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.6_FACE.jpg 1064w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.6_FACE-249x300.jpg 249w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.6_FACE-851x1024.jpg 851w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.537.4.72.6_FACE-768x924.jpg 768w" sizes="auto, (max-width: 1064px) 100vw, 1064px" /><figcaption id="caption-attachment-113942" class="wp-caption-text">The dial of the Longines Ultra-Chron Classic</figcaption></figure>
Under ISO 3159, the qualification process involves a stringent 15-day testing period for the finished watch. During this time, the fully assembled timepiece undergoes functional tests in multiple positions at three temperatures—8, 23 and 38 degrees Celcius—to confirm its accuracy. This rigorous approach underscores the enduring importance of timing performance.
Longines also demonstrates its dedication to heritage through its bracelet designs. The unique groove pattern from the original 1967 model inspires the modern bracelet, with alternating brushed and polished stainless-steel finishes that heighten visual appeal and ensure comfort. For those who prefer leather, the watch is also available on a black leather strap, which comes with a heritage stainless-steel pin buckle that reflects the design language of the era.
<figure id="attachment_113943" aria-describedby="caption-attachment-113943" style="width: 1040px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-full wp-image-113943" src="https://backend.daman.co.id/wp-content/uploads/2025/12/L2.937.4.72.6_BACK.jpg" alt="" width="1040" height="1280" srcset="https://backend.daman.co.id/wp-content/uploads/2025/12/L2.937.4.72.6_BACK.jpg 1040w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.937.4.72.6_BACK-244x300.jpg 244w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.937.4.72.6_BACK-832x1024.jpg 832w, https://backend.daman.co.id/wp-content/uploads/2025/12/L2.937.4.72.6_BACK-768x945.jpg 768w" sizes="auto, (max-width: 1040px) 100vw, 1040px" /><figcaption id="caption-attachment-113943" class="wp-caption-text">Caseback of the Longines Ultra-Chron Classic</figcaption></figure>
What makes the Ultra-Chron Classic compelling is how these technical achievements translate into daily experience. The high-frequency caliber offers not just mechanical pedigree but a steadiness and responsiveness that seasoned collectors immediately recognize. Combined with its balanced proportions and period-inspired bracelet or strap options, the watch feels tailored for modern wear despite its vintage origins.
Its full chronometer certification—granted by the Observatoire Chronométrique de Genève through the TIMELAB foundation—reinforces this sense of reliability. Beyond meeting archival expectations, the Ultra-Chron Classic performs with a consistency that contemporary owners can appreciate day after day. It stands as proof that Longines’ pursuit of precision is not confined to testing protocols but continues on the wrist where it matters most.
Text Riga Ramadhan

The Longines Ultra-Chron Classic: The return of high-frequency Precision

Longines,

The Longines Ultra-Chron Classic