3
. Maintenance service
Please note that as with any micromechanical precision
instrument, HAMILTON watches require regular mainte-
nance. This keeps your watch in perfect working order
and makes it last longer.
The frequency with which this maintenance work needs
to be carried out depends on the model, as well as cli-
matic conditions and the owner’s care of the watch.
Therefore we cannot give a specic time interval for
servicing. We generally recommend that a complete
maintenance service should be carried out every to
years.
To ensure that the service is carried out professionally,
kindly take your watch to an authorized HAMILTON
Service Center or ocial HAMILTON retailer.
Water resistance
During the nal check, HAMILTON watches are checked
for water-resistance as marked on the back of the case,
but the water-resistance of a watch is not permanent.
The water resistance of a watch can be impaired by the
natural aging process of the gaskets (case back gasket,
crown gasket, crystal gasket etc.) or accidental knocks
to the watch case.
Additionally, external inuences like perspiration, chlo-
rine- or saltwater, ultraviolet rays and cosmetic products
can compromise the sealing over time.
Therefore, always rinse your watch with clear water,
when it comes in contact with chlorine- or saltwater.
Basic advice for safeguarding the water resis-
tance of your watch:
The water resistance should be checked once a year by
an authorized HAMILTON Service Center.
Please ensure that the crown, according to the model, is
pressed back into position , or screwed back carefully
so that water cannot get into the mechanism.
Do not use crown/push button functions under water.
The water-resistance of your watch is marked on the
back of the case:
3 bar (30 m) = 43 psi (98.4 ft)
5 bar (50 m) = 73 psi (164 ft)
10 bar (100 m) = 145 psi (328 ft)
15 bar (150 m) = 217 psi (492 ft)
20 bar (200 m) = 290 psi (656.1 ft)
100 bar (1000 m) = 1450 psi (3280.8 ft)
Leather straps
Please note that leather is a natural material subject
to natural ageing. Depending on your wearing habit,
the strap should be replaced regularly for reasons of
safety (security of the watch on your wrist), as well as
aesthetic and hygiene reasons. In normal, daily wearing
conditions it has an average life of six to twelve months.
To keep your leather strap in good condition for as long
as possible, HAMILTON recommends the following:
• Protect your leather strap from heavy and long ex-
posure to sunlight to prevent discoloration.
• Leather is permeable, contact with oily substances
and cosmetics can damage it.
• To prevent deformation and fading of color, avoid
contact with any kind of water.
• Clean your leather strap with a soft dry cloth, chem-
ical substances can damage it.
Bathing in the sea and swimming pools
Always rinse your watch with clear water after use in,
or contact with salt or chlorine water.
Cleaning
All HAMILTON watches can be cleaned with a soft, dry
cloth periodically. Water resistant watch cases, bracelets
and rubber straps can be cleaned by using a small brush
(e.g. a toothbrush) and soapy water. Rinse it with clear
water afterwards and use a soft cloth to dry it.
Chemical products
Direct contact with solvents, detergents, perfumes,
cosmetic products etc. can damage your strap/brace-
let and case. Further, such chemical liquids impair the
