Worth Noting
- Louis Moinet Memoris Diamonds is a self-winding monopusher chronograph in a 46 mm ORIGINAL case, available in 18K red gold or grade 5 titanium, each limited to 12 pieces, with a bezel set with 60 VVS brilliant-cut diamonds totalling 0.90 carats and a dial set with 12 blue sapphires.
- The entire LM79 chronograph mechanism — more than 500 components — is visible on the dial side, animating with every activation of the single pusher.
- Two references: LM-79.5D.80 (18K red gold) and LM-79.2D.80 (grade 5 titanium), each produced in an edition of 12 pieces.
- Sapphire blue runs throughout: dial markers, flange, mainplate, and blued chronograph-bridge screws all share the same hue, carried further by the Louisiana alligator strap.
The Story Behind It
The MEMORIS was conceived as a particular kind of argument: proof that a chronograph could be experienced as much as read. Louis Moinet placed the entire mechanism on the dial side so that every activation becomes a private viewing of precision engineering. That core proposition remains unchanged in the Memoris Diamonds. What the new limited editions add is a layer of gem-setting that reframes the watch from technical object to high jewellery territory, without displacing the mechanical spectacle at its centre.
The two references serve different collector temperaments. The 18K red gold version carries warmth that deepens the blue of the sapphires; the grade 5 titanium version keeps the contrast colder and the overall weight lower. Both retain the ORIGINAL case at 46 mm, the format in which the MEMORIS chronograph first appeared and the one most directly associated with the model’s identity.
Design and Gem-Setting
Up close, the ORIGINAL case rewards attention at every angle. Alternating satin-brushed and polished surfaces create a quiet visual rhythm across its 46 mm diameter, while the stepped bezel breaks that rhythm with the presence of 60 VVS-quality brilliant-cut diamonds totalling 0.90 carats, secured beneath the same six screws that have always characterised this case architecture. The lugs introduce black spinels set in screw-mounted chatons, a detail that grounds the overall brilliance without softening it.
The dial reads as a composition rather than a surface. Twelve blue sapphires totalling 0.80 carats mark the hours against a white lacquered dial with a shimmering finish. That blue extends to the flange, the mainplate, and the two blued screws of the chronograph bridge, so the colour becomes structural rather than decorative. “Gouttes de Rosée” hands complete the dial, accompanied by white small-seconds and chronograph hands that keep legibility clear.
Movement and Materials
The LM79 calibre is a self-winding monopusher chronograph with column wheel, beating at 28,800 vph with 30 jewels and a 48-hour power reserve. Its architecture places the column wheel, levers, clutch, hammers, and wheels where the wearer can observe them functioning in sequence — start, stop, reset — each cycle a visible mechanical event rather than an assumed one. Over 500 components were engineered to make this possible. Water resistance is rated to 50 metres, supported by an interchangeable tube-crown protection system with an independent stem integrated inside a water-resistant mechanism, secured by a plate mounted with four screws.
The single pusher at two o’clock carries the traditional clous-de-Paris pattern, a finishing detail that signals the level of care applied throughout. Louisiana alligator, lined with alligator, completes each watch, closed by a triple folding clasp with fine adjustment and Fleur-de-lys decoration.
Where It Sits in the Collection
The Memoris Diamonds occupies the upper register of the Louis Moinet line: a gem-set, exhibition-mechanism chronograph in precious metal or high-performance titanium, produced at 12 pieces per reference. For collectors in the Gulf who follow independent Swiss manufacture output, editions at this scale rarely reach secondary market catalogues in quantity. The pairing of VVS diamonds with a dial-side movement display is an unusual combination; most jewellery-orientated watches conceal their mechanics, while most technical chronographs forgo gem-setting. The Memoris Diamonds declines to choose between the two.
For more on Swiss independent watchmaking presented at Watches and Wonders, the Watchespedia events section covers the key fair presentations each season.
Specifications
| Movement | LM79 — self-winding monopusher chronograph, column wheel, 28,800 vph, 30 jewels, 48-hour power reserve |
| Case Diameter / Height | 46 mm / 16.82 mm |
| Case Material | 18K red gold (LM-79.5D.80) or grade 5 titanium (LM-79.2D.80); polished and satin-finished; bezel set with 60 VVS brilliant-cut diamonds (0.90 ct) |
| Water Resistance | 50 metres |
| Dial | White lacquered, shimmering finish; 12 blue sapphires (0.80 ct) |
| Edition | 12 pieces per reference |
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| Movement | LM79 — self-winding monopusher chronograph with column wheel, 28,800 vph, 30 jewels |
| Case size | 46 mm diameter, 16.82 mm height |
| Case material | 18K red gold or grade 5 titanium, polished and satin-finished; bezel set with 60 VVS brilliant-cut diamonds (0.90 ct) |
| Water resistance | 50 metres |
| Price | Not stated |
Frequently Asked Questions
What makes the Louis Moinet Memoris Diamonds different from a standard MEMORIS chronograph?
The Memoris Diamonds adds a stepped bezel set with 60 VVS-quality brilliant-cut diamonds totalling 0.90 carats, a white lacquered dial set with 12 blue sapphires, and lugs adorned with black spinels in screw-mounted chatons — details absent from the standard MEMORIS line. Each version is a limited edition of 12 pieces, available in either 18K red gold or grade 5 titanium.
What movement powers the Louis Moinet Memoris Diamonds?
The watch runs on the in-house LM79 calibre, a self-winding monopusher chronograph with column wheel beating at 28,800 vph with 30 jewels and a 48-hour power reserve. The mechanism comprises more than 500 components and is displayed on the dial side, making the entire chronograph architecture visible during operation.
How many pieces of the Louis Moinet Memoris Diamonds are produced, and is it available in the GCC?
Each reference is limited to 12 pieces — 12 in 18K red gold (LM-79.5D.80) and 12 in grade 5 titanium (LM-79.2D.80). Louis Moinet is a Swiss manufacture based in Saint-Blaise, Switzerland; for regional availability in the GCC, collectors should contact the brand directly or their authorised retailer.
What case size does the Louis Moinet Memoris Diamonds use?
The Memoris Diamonds uses the ORIGINAL case at 46 mm in diameter and 16.82 mm in height, the same case that first housed the MEMORIS chronograph and is now recognised as one of Louis Moinet's most distinctive designs.
What strap and clasp does the Louis Moinet Memoris Diamonds come with?
The watch is fitted with a Louisiana alligator strap with an alligator lining, secured by a triple folding clasp with fine adjustment and Fleur-de-lys decoration.
