Beautiful, vintage Certina Labora mechanical men's wristwatch, in very good vintage condition! **What makes this piece an absolute standout for serious collectors is its spectacular condition, especially when considering it is a mechanical masterpiece that is almost 90 years old!** Featuring the highly collectible "Labora" designation, this model stands out with its military-inspired dial layout and robust vintage aesthetic, a characteristic that makes these mid-century Swiss timepieces incredibly desirable among collectors. As seen in the images, the beautifully patinated cream-toned sector dial remains wonderfully clean and well-preserved with sharp Arabic numerals, a tracking minute ring, and a prominent sub-seconds register at the 6 o'clock position. The crystal is clear, and the manual-wind movement is running perfectly. The overall design is a perfect example of 1940s luxury-utility watch aesthetics, with its stepped round bezel, elegant downturned lugs, and oversized winding crown that makes setting the time a tactile pleasure. **Inside beats an incredibly clean, pristine in-house Certina Cal. K.F. 320 (Kurth Frères) manual-wind movement with 15 jewels.** Visible on the images, the bridges and gears of this historical mechanism remain remarkably bright and free of the oxidation or wear so common in timepieces of this era. This robust mechanical caliber features an Incabloc shock-protection system, making it an incredibly reliable and beautifully finished engine of Swiss watchmaking history. The all-stainless steel case remains in highly honest vintage condition, retaining its original sharp proportions and definition. As verified by the markings on the inside of the caseback in the images, it features the prestigious SF (Brevet Swiss) patent stamp alongside the "Acier Inoxydable" classification. The case measures a classic 33 mm in diameter excluding the crown, offering a vintage profile that wears beautifully on the wrist. The watch comes fitted on a vibrant, premium blue leather strap that pairs exceptionally well with the warm patina of the vintage dial. According to historical movement production archives, this Certina Labora dates precisely to the mid-to-late 1940s. Watch only. Ref. number: K.F. 320 Movement: In-House Certina Cal. K.F. 320 Manual-Wind, 15 Jewels Case Material: Stainless Steel (Acier Inoxydable) Shock Protection: Incabloc Swiss Made