The pentagonal hour



An elegant revisit of the pentagon

Originality and elegance are the mantras that were at the basis of the creation of this new design inspired by the pentagon to propose this unique and timeless watch shape on which all the elements have five sides

Tzoumy Coulouvrenière

A design created in the heart of Geneva by Yvan Monnet. A star inscribed in a pentagon and curves to create this city watch.

A discreet and unforgettable pentagonal beauty with high quality finishes.

Tzoumy Denim
Tzoumy Melon
Tzoumy Melon

This new watchmaking project proposes a unisex, sober and elegant design, opening up to a wide public thanks to the optimization of design and rationalized production of components in strict compliance with watchmaking standards and luxury codes.

Tzoumy Melon
Tzoumy Melon
Tzoumy Melon
Tzoumy Melon

High quality manufacturing, materials selected for their durability and a Swiss made movement

Calibre Lnderon 24
Calibre Lnderon 24

This new shape designed by Yvan Monnet revisits the pentagon in an elegant and timeless version, away from the current trend. This design required a great deal of expertise and attention to detail to achieve harmony between form and function.

Particular care has been taken in the choice of materials and components for these watches. Stainless steel of watchmaking quality for the case so that it can be repolished if necessary, sapphire glass for the bezel and back glass and titanium screws for the fixing of the bezel.

Our values and ethics have led us to equip this design with the new version of the mythical automatic caliber “Landeron 24” produced in Switzerland with components that will remain available for many years and that can be refurbished by any good watchmaker. These timepieces are designed to be durable and can be passed on from generation to generation.

This model is offered with five colored dials whose satin sunray background plays with the light thanks to galvanic shades ranging from the classic silver opaline to the original melon orange, passing through denim blue, cobalt blue and anthracite gray. The choice of this finish for the back of the dials refers to the sun, the star that gives rhythm to our lives, and the colors of the dials are inspired by the hues of the sky, which vary according to the weather and the time of day.

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This city dweller from Geneva who spent his childhood in the Valais appreciates in the same way the comfort of city life with its facilities and comforts as the simplicity of life in the mountains in a preserved environment. A fine gourmet, lover of wide open spaces and preserved nature, this dreamer with a touch of rebelliousness has chosen, in reference to his childhood vacations and the place where he likes to come and recharge his batteries in all simplicity in the family chalet in the vicinity of “La Tzoumaz”, that he has decided to call his new brand “Tzoumy”.

La Tzoumaz

Technical data

Tzoumy eclate


316L Steel case stainless steel, polished-brushed

Anti-reflective sapphire glasses on the bezel and the back

Tzoumy crown at 14h30

Diameter 3h-9h > 40mm, Thickness: 9,5mm

Lug width: 20mm


Sunbrush finishing, 5 colors – opalin (white) – cobalt blue – anthracite – denim blue – melon (orange).

13 hours markers, two-tone décals


Polished faceted and recessed hours and minutes hands

Second hand arrow balanced


Caliber Landeron 24 avec masse Tzoumy

Max. run time deviation: 10 sec/day

Frequency 28’800 A/h (4Hz)

36h power reserve

Leather Straps

Hand-sewn calf leather, tanned in Italy

Pin buckle

Barrettes with lugs for changing bracelets without tools

Folding clasp on request





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