Longines Caliber L633.1 1570-1-7951 (1974)

Presented for auction by Second Vintage This classic 1974 Longines automatic presents a highly legible and attractive vertically brushed silver dial, housed within traditional 1970s dress watch proportions. Powered by the reliable Longines caliber L633.1, it offers a refined vintage aesthetic grounded in dependable mechanical performance. Brand: Longines Reference Number: 1570-1-7951 Serial Number: 52363820 Movement: Automatic, caliber L633.1, 25 jewels Dial: Silver with vertical brushing and applied indices Case Size: 35 mm (excluding the crown) Case Material: Gold-tone Production Year: 1974 Condition: Good vintage condition. Timegrapher: +20+22s/day, running strong and steady. Dial and Hands The dial is clean and highly legible, characterized by a well-preserved silver vertically brushed finish. The applied indices and Longines logo remain crisp against the textured background, while all printed text is fully intact and readable. The dial shows minimal signs of aging or spotting, maintaining a bright and refined appearance. The baton hands display visible surface oxidation and spotting when viewed under magnification, though their shape remains intact without any deformation. Case and Crystal The gold-tone case presents honest wear typical of its age, featuring traditional proportions and smooth surface transitions. There are visible surface scratches and handling marks throughout, alongside some softening of the lug edges consistent with regular use. The stainless steel caseback displays light scratches. The textured crown is signed with the Longines winged hourglass logo, which is heavily worn, and there is evident plating wear on the crown edges. A domed acrylic crystal protects the dial, remaining clear with minor surface scratches visible at certain angles. Movement Inside is the Longines automatic caliber L633.1, featuring twenty-five jewels. The movement appears clean with no obvious signs of corrosion or heavy wear, displaying bright finishing across the rotor and bridges. The factory engravings, including the brand signature and serial number, are crisp and legible. The timegrapher records a rate of +20+22s/day. Performing well within expected vintage tolerances; running strong and steady. Strap The watch is fitted with a black leather strap featuring contrast stitching. It shows signs of light use and minor creasing, complementing the classic dress aesthetic of the timepiece. Condition Good vintage condition. The watch exhibits honest signs of use throughout, including visible surface scratches on the gold-tone case, softened lug edges, and plating wear on the crown. The hands show visible oxidation under magnification, while the brushed silver dial remains exceptionally well preserved and clean. The domed acrylic crystal displays minor scratches. Dimensions The case measures 35 mm (excluding the crown). Remarks This Longines offers a handsome combination of a striking vertically brushed silver dial and a proven automatic caliber. The classic proportions make it a versatile dress watch that carries genuine 1970s character. It is a highly legible and dependable timepiece ready for regular wear. History During the 1970s, Longines continued to produce refined dress watches that prioritized legibility and reliable automatic movements. The introduction of the caliber L633.1, based on robust Swiss ebauches, provided dependable performance wrapped in elegant case designs. Watches from this era reflect a transition period in horology, maintaining traditional mechanical watchmaking principles while adopting the sleek, straightforward aesthetics characteristic of the decade. This specific example represents the reliable, standard-production automatic timepieces that solidified Longines' reputation for accessible quality during the period. / Second Vintage SKU: LON-XXX-0015