The Longines La Grande Classique ref: L4.512.4.81.6 features a stainless steel case with a diameter of 29 mm. This model is powered by a quartz movement, specifically the Longines caliber L420. The watch showcases a blue dial, offering a striking contrast to its polished exterior. Released in 2023, it combines modern technology with a classic design, making it a versatile addition to any collection.