At Geneva Watch Days, Russian independent watchmaker Konstantin Chaykin captured attention with the unveiling of the ThinKing Prototype, which is being heralded as potentially the world’s thinnest mechanical wristwatch at just 1.65mm in thickness – even thinner than 1.75mm Richard Mille RM UP-01 Ferrari. This groundbreaking prototype is a major development in the competitive world of ultra-thin watchmaking, challenging previous records and setting a new benchmark.
The ThinKing Prototype is not only remarkable for its slim profile but also for its innovative features and design. The dial, inspired by the brand’s Wristmon collection, presents a playful, face-like layout with hour and minute displays that resemble eyes, and a smile formed by the engraved brand name on the case front. The case, crafted from heat-treated high-hardness stainless steel, measures 40mm and weighs only 13.3 grams without its strap.
Technical innovations in the ThinKing are extensive, including the new K.23-0 movement which is integrated directly into the case. This design approach eliminates the need for additional space and contributes to the watch’s ultra-thin profile. The movement is manually wound, operates with a Swiss lever escapement, and includes a single ultra-thin winding barrel alongside a double balance system with a geared clutch. Remarkably, the entire watch is thinner than an American nickel.
To enhance durability and practicality given its delicate structure, Konstantin Chaykin introduced innovative solutions such as a specially designed strap made from alligator leather with elastic inserts and titanium supports to manage the stress from wear. Another key feature is the Case-PalanKing, a special carrying case that attaches to the watch’s back, serving both as a protector and an automatic winder, which increases the overall thickness to a still-impressive 5.4mm when attached.
The development of the ThinKing has led to the filing of three patents for the winding barrel, the double balance wheel, and the strap design, highlighting the technical challenges and solutions involved in crafting such an ultra-thin watch.
As the ThinKing is currently a prototype, Konstantin Chaykin has not released any details regarding pricing or availability. Watch enthusiasts and collectors will have to keep an eye on future updates as the brand works towards a production model.
This prototype represents a significant milestone in watchmaking, pushing the limits of mechanical watch design with a combination of advanced engineering and unique aesthetics, making it a standout piece at this year’s Geneva Watch Days and signaling exciting developments ahead in the quest for the ultimate ultra-thin watch.
