Master Moonphase

The Longines Master Moonphase 40mm brings classic Swiss watchmaking into a versatile, contemporary package. Since its introduction, this model has attracted attention for blending a complete calendar with a moonphase complication at an accessible price point—features traditionally reserved for much costlier watches. Its elegant dial layout and balanced proportions make it a compelling choice for those seeking both sophistication and everyday wearability.

Within the Master Collection, the L2.919.4.x references are the most sought-after, offering a clean 40mm case and a transparent caseback that reveals the automatic Caliber L899 (based on the ETA A31.L91). Variants differ mainly in dial color—silver barleycorn, sunray blue, or black—as well as strap options. The blue dial versions often command a slight premium, while steel bracelets add value and versatility compared to leather straps.

Pricing varies based on condition, dial preference, and whether the original box and papers are included. The moonphase display and full calendar are the main technical draws, but also note the 30-meter water resistance, which limits this watch to dress and light daily use. When buying, check that the calendar functions operate smoothly, as rough setting can occasionally cause issues with this movement. This is a model where complete sets and pristine dials make a real difference in value.