Longines Master Collection Moonphase
The case, in stainless steel, is available in 42mm or 40mm. It has a sapphire crystal, a display back, and it is water resistant to 30 meters.
Movement is the Swiss automatic Longines caliber L899 (base ETA A31.L91 that is exclusive to Longines) with 21 jewels, 25,200 vph and a power reserve of 64 hours. Functions are: hours, minutes, seconds, moonphase and date ring.