Each polyurethane / rubber / silicon / resin band’s durability depends on its conditions of use. In general, over time polyurethane has a tendency to deteriorate due to a process called hydrolyzation.
A polyurethane / rubber / silicon / resin band may deteriorate if exposed to or is in:
- contact with solvents, perfumes or cosmetics
- consistently wet, from perspiration or in high humid locations
- sunlight for extended periods
- discoloration from light
Deterioration may appear as small cracks on the band surface or underside.
Polyurethane bands, which are made of soft plastic, may turn hard after years use. Colour fading may also be seen.
If bands are kept wet and in highly humid locations or are exposed to sunlight for a long time, the deterioration of the bands may be accelerated in a relatively short period and some cracks may appear on the band surface. (This is called ‘hydrolytic cleavage of polyurethane’)
In addition, a translucent, white, or pale coloured band easily absorb other colours, resulting in colour smears or discolouration.
Care should be given to the condition of polyurethane bands, which are often worn for marine sports or outdoor activities.
To extend the life of the watch band, periodic cleaning is recommended. The softer and dryer the strap is kept, the longer it will last.
Wash off any dirt with mild detergent and water then dry thoroughly with a dry cloth (protect the watch head from water splashes by wrapping it in plastic wrap etc.).
When the band becomes less elastic or flexible, please contact an Authorised Seiko Band/Strap Wholesaler for replacement. If you continue to use the band as it is, it may develop cracks or become brittle over time.
Leather bands are made of natural materials which can be easily influenced by water, perspiration or staining compared with metal bracelets. From continued wear, leather bands can be prone to colour fading, and rips and tears, or the band can split where it joins to the buckle. Constant care is required to keep your band in the best order possible.
If your watch band is being affected by perspiration, or a spill, immediately dry the band with a dry soft cloth and place it in a well ventilated place to completely dry.
If perspiration is a continued issue, you can try wearing your band looser.
We recommend that you do not expose your leather banded watch to sunlight for extended periods of time, e.g. on the car dashboard. This may lead to discolouration, transformation or breakage of your leather band, and may damage the watch and movement.