Moritz Grossmann's cornerstone limited model that we have been working on since last year. It took a lot of time to complete the dial and hands, but now all the models have arrived.

The champagne-colored dial with a sunray finish, bar index, stepped railway minute scale, and hands that are made only for this limited model have been changed to a simpler shape, and the combination of needle colors is different for all four models.

・Hours, minutes, seconds (brown)
・Hours, minutes, seconds (brown-violet)
・Hours and minutes (brown) Seconds (brown-violet)
・Hours and minutes (brown-violet) Seconds (brown)

[Attractive square movement]

"Cornerstone", which has the meaning of foundation, foundation, and essential, is the brand's first square model. Instead of an existing movement, it is equipped with a special movement "Caliber 102.3" designed from the ground up for this model.

Since square movements are not versatile, there are few places that make them even with full-fledged mechanical brands, making them a valuable presence. It is a movement that could only be realized by Moritz Grossmann, whose production numbers are in the hundreds.

Despite its compact size, it has a large barrel and a power reserve of about 60 hours. It doesn't reach the 3-day volume, which is common these days, but it's doing well with 2 and a half days.

[finishing the needle]


Speaking of Moritz Grossmann "needle". In-house production is rare, and the first cut is machined, but after that, it is a daunting task.

Since the edges are sharp when cut out, each needle is polished using a diamond file or paper file. The tip of the needle is extremely sharp and you can get a glimpse of the greatness of manual work.

Next, polish with a rotating tool with wood or felt stuck in it. If this process is sloppy, spots will appear during tempering, so polish thoroughly.

The last is tempering. Color is added by holding it over an alcohol lamp and burning it. As with this limited edition model, Moritz Grossmann uses brown and brown violet instead of the usual blue. Moritz Grossmann deliberately uses a color that has a shorter burning time margin than blue and is difficult to reproduce stably.

In addition, the thickness and width of the needles vary depending on the location, so temperature differences are likely to occur, and the color changes even with preheating. It seems that it takes 2 to 3 hours to complete one hand, and the 3-hand (hour, minute, second) model takes a whole day.

*From 2 minutes 44 seconds onwards, the production process of the hands.

https://youtu.be/ktYb--1YjQA

Limited production of 1 each of 4 models with a combination of needle colors. If you have a desired combination, please purchase it as soon as possible.

・MG-002386 hour minute second (brown)
・MG-002387 hour minute second (brown violet)
・MG-002388 hours and minutes (brown) seconds (brown-violet)
・MG-002389 Hours and minutes (brown violet) Seconds (brown)

[Common specs]
Movement: Hand-wound in-house caliber 102.3
Balance frequency: 21,600 vibrations/hour
Power reserve: about 60 hours
Material: 18K white gold
Dial: solid silver, sunray champagne color
Hand: Tempered steel with hand finishing
Size: Length 46.6mm / Width 29.5mm
Price: ¥4,290,000
Limited number: 1 each

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