Chealwatch watch repairs

Water ~ Resistance

Below is a guide to water-resistance values and their intended use.

*Water-Proof*

Old terminology which covered all types of Water-Resistance. Most timepieces bearing this claimant are well past their original efficiency and should, at best be treated as *Water Resistant*

*Water Resistant*

Timepieces marked *Water Resistant* by ISO 2281 have passed the following test only; 30 minutes under water at a depth of 1 m (3ft) followed by 90 seconds under a pressure corresponding to 20m (66ft) . *3 ATM* and *Water Resistant* are NOT suitable for swimming.

Usage

The crown must be in the normal or *Screw Down* position and must NOT be worked when wet. Dry with a soft cloth after immersion. Keep in mind that water-resistance is not a permanent condition. For example, the gaskets that are fitted in the crown, case back and glass will deteriorate with time and should be inspected and changed periodically. It is good practice to change the battery hatch or case back seals whenever the battery cell is changed.

*Misting* or *Fogging*

A drastic reduction of temperature turns moisture inside the watch to dew, which adheres to the inside surface of the case, the glass may become cloudy. The cloudy glass, will generally became clear in a few minuets, it is recommended to check the water resistant qualities of the timepiece. If the glass remains cloudy, urgent work is required.

Water

Resistant

30m

100ft

3ATM

3 BAR

50m

160ft

5 ATM

5 BAR

100m

300ft

10 ATM

10 BAR

150m

500ft

15 ATM

15 BAR

200m

660ft

20 ATM

20 BAR

1000m

3,300ft

100 ATM

100 BAR

 

Accidental Splashes

Swimming

Swimming

Snorkelling

Scuba

Diving

Professional

Deep Sea Diving

ISO 2281

ISO 6425

ISO = International Standards Organisation.

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