Jaeger-LeCoultre Calibre 898C Master Ultra Thin 41 1338421 Silver Index Stainless Steel Leather 41mm Automatic BRAND NEW Jaeger-LeCoultre Calibre 898C Master Ultra Thin 41…

The Jaeger-LeCoultre Master Ultra Thin 41 reference 1338421 represents the pinnacle of the Geneva manufacture's century-long pursuit of slimness without compromise. Introduced as part of the storied Master collection, the Ultra Thin line traces its lineage directly to the landmark ultra-thin calibres JLC pioneered in the twentieth century, earning the Vallée de Joux atelier a reputation as the watchmaker's watchmaker. Today that heritage is distilled into a contemporary 41mm format that wears as comfortably on modern wrists as it does on tradition.

The 41mm stainless steel case of reference 1338421 is executed with the restrained geometry that defines the Master Ultra Thin family — gently curved lugs, polished flanks, and a profile slim enough to slip beneath a shirt cuff with ease. The stainless steel bezel echoes the case finishing, keeping the focus squarely on the dial rather than competing for visual attention. Every dimension has been considered to ensure the watch feels weightless without ever seeming insubstantial.

The silver dial with index hour markers is a study in disciplined elegance. Applied indices catch light subtly, providing instant legibility without disrupting the dial's open, airy quality — a hallmark of the Ultra Thin aesthetic. The absence of superfluous complications reinforces the philosophy that true luxury lies in perfection of execution rather than accumulation of features, and the result is a dial face that rewards close inspection as much as a casual glance from across a room.

Beneath the case the Calibre 898C automatic movement does the quiet work that has made Jaeger-LeCoultre one of the most respected manufactures in Fine watchmaking. The movement is entirely designed, developed, and assembled in the Le Sentier manufacture, reflecting the vertical integration that allows JLC to control every element of quality. Wearing reference 1338421 means carrying genuine manufacture horology on your wrist — a meaningful distinction in an era of assembled movements.

The leather strap grounds the watch in classic dress-watch tradition, offering comfort and flexibility across a wide range of wrist sizes while complementing the silver dial and steel case with understated sophistication. Whether paired with a formal suit or a relaxed business-casual ensemble, this combination ensures the Master Ultra Thin 41 never looks out of place. The strap can be changed at home or at a service centre, allowing the owner to personalize the piece over time.

Bizak & Co. offers reference 1338421 brand new, ensuring you receive the full manufacturer presentation and warranty that comes with a fresh example straight from authorized inventory. Purchasing from Bizak means dealing with a trusted specialist who can answer detailed questions about the piece, assist with authentication, and provide ongoing after-sale support. Browse the Master Ultra Thin 41 for sale at bizakandco.com or reach out directly — our team is ready to help you acquire this icon of thin-watch craftsmanship at the best possible price.