
The Longines Master Collection Retrograde Moon Phases is available in 41mm or 44mm diameters and combines four retrograde functions with moon phase and day/night displays. The retrograde hands indicate day of the week at 12 o’clock, the date on the right-hand side of the dial, a 24-hour second time-zone on the left-hand side of the dial, and small seconds at 6 o’clock. Find pricing and wallpaper inside.
The Longines Master Collection Retrograde Moon Phases is available with a black dial and a black leather strap, or with a silvered dial on a brown alligator strap.
The price in Swiss Francs is SFr.3,500. The images below may be enlarged with a click.


Technical specifications
Reference numbers
L2.738.4.71/51.X 41 mm
L2.739.4.71/51.X 44 mm
Caliber
Self-winding mechanical movement
Calibre L707.2 (ETA A07 L31)
16½ lines, 25 jewels, 28,800 vibrations per hour
48-hour power reserve
Functions
Hours and minutes
4 retrograde functions
Day, date, small seconds and 24-hour second time zone
Phases of the Moon
Day and night
Case
Circular, stainless steel, Ø 41 mm or Ø 44 mm
Transparent sapphire glass back cover
Water-resistant To 3 bar (30 meters)
Dial
Silvered, 11 black Roman numerals
Black, 11 white Roman numerals
How do I buy one ?
Saw a silver 41mm at a duty free shop in Madrid, 2200 euros with a discount and no taxes. Was very tempted, but wrong case size and color for me. Beautiful, elegant watch.
Though this maker does not always command great respect, this is a fine watch and great value for the money given its complications and customized movement. Purchased mine in Singapore and just love wearing it.
I tried ordering this watch twice (Longines Master Collection L2.739.4.71.6)L2.739.4.71/51.X 44 mm
No one can seam to get it…I think this watch is an erband legend
Ordered mine last week and just picked it up today. I got the white dial one. It’s a gorgeous watch and feels great on the wrist!