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AUGUSTE REYMOND
few weeks or months, we would advise you to put it to one side, having first
pulled the crown out to the last position. You will see the second hand now
stopped working. This will substantially reduce power consumption.
SAPPHIRE CRYSTAL
Sapphires may be found naturally or they also may be manufactured for industrial
or decorative purposes in large crystal boules from agglomerated aluminium
oxide (Al2O3). Artificial sapphire material is identical to natural sapphire,
except it can be made without the flaws that are found in natural stones. Sap-
phire glass is not only highly transparent, but is also extraordinarily scratch-re-
sistant. Sapphire has a value of 9 on the Mohs scale of mineral hardness (the
second hardest mineral, right behind diamond). Due to its extreme hardness,
sapphire is scratch proof and resistant to wear and chemical attack. We use
since many years this perfect material for all the top crystals on our AUGUSTE
REYMOND® watches.
SCREW-DOWN CROWN
To ensure greater water-resistance, certain watches are equipped with a screw
down crown. The screw-down crown is sealing the crown to the case of the
watch when it’s screwed in. With a screwed crown the water-resistance can
reach 10 bar (100 m / 330 ft), 20 bar (200 m / 660 ft) or even 30 bar (300 m /
1000 ft), depending on the model. On these models you need first to un-screw
the crown to manipulate and after manipulation to screw it down again.
STAINLESS STEEL MATERIAL
Stainless steel does not readily corrode, rust or stain with water as ordinary
steel does. Stainless steel is used where both the properties of steel and
resistance to corrosion are required. For the manufacture of all accessible
components of its metal watches AUGUSTE REYMOND® has selected a very
high quality stainless steel grade 316L (EN 1.4404 ). The advantage of this steel
is its high corrosion resistance, excellent durability and is in good harmony
with your skin. For example, certain steels used in the medical field for the
manufacture of implants also belong to the 316L family.
SUPER-LUMINOVA®
Many AUGUSTE REYMOND® watches are equipped with a luminous mate-
rial on hands and on dials to allow time reading in low-light conditions. We
only use Super-LumiNova® pigments as luminescent material. After sufficient
activation by sunlight or artificial light they glow in the dark for many hours.
This material is a passive element, environmental friendly, non-toxic and
absolutely free of radioactivity.
