Question: Which feature does the G-shock watch have that is tested by a leakage test?

Passages:
The wet leakage current test is an electrical withstanding test carried out on electrical appliances to test the electrical isolation of the housing.  The test is carried out by submersing the appliance into water with one lead attached to the electrical leads of the appliance, and the other lead connected to the water.  It is often carried out on photovoltaic modules in order to qualify them for IEC61646 or IEC61625 certification. Water Resistant is a common mark stamped on the back of wrist watches to indicate how well a watch is sealed against the ingress of water.  It is usually accompanied by an indication of the static test pressure that a sample of newly manufactured watches were exposed to in a leakage test.  The test pressure can be indicated either directly in units of pressure such as bar, atmospheres, or (more commonly) as an equivalent water depth in metres (in the United States sometimes also in feet). The Draize Test is an acute toxicity test devised in 1944 by Food and Drug Administration (FDA) toxicologists John H. Draize and Jacob M. Spines.  Initially used for testing cosmetics, the procedure involves applying 0.5mL or 0.5g of a test substance to the eye or skin of a restrained, conscious animal, and then leaving it for set amount of time before rinsing it out and recording its effects.  The animals are observed for up to 14 days for signs of erythema and edema in the skin test, and redness, swelling, discharge, ulceration, hemorrhaging, cloudiness, or blindness in the tested eye.  The test subject is commonly an albino rabbit, though other species are used too, including dogs.  The animals are euthanized after testing if the test renders irreversible damage to the eye or skin.  Animals may be re-used for testing purposes if the product tested causes no permanent damage.  Animals are typically reused after a "wash out" period during which all traces of the tested product are allowed to disperse from the test site. Electrical safety testing is essential to ensure safe operating standards for any product that uses electricity.  Various governments and agencies have developed stringent requirements for electrical products that are sold world-wide.  In most markets it is mandatory for a product to conform to safety standards promulgated by safety and standard agencies such as UL, CE, VDE, CSA, BSI, CCC and so on.  To conform to such standards, the product must pass safety tests such as the high voltage test (also called as Dielectric voltage-withstand test or high potential test), Insulation Resistance Test, Ground (Earth) Bond & Ground Continuity Test & Leakage Current Test (also called as Line Leakage Test, Earth Leakage Current Test, Enclosure Leakage Current Test or Patient Leakage Current Test).  These tests are described in IEC 60335, IEC 61010 and many other national and international standards. The Anderson–Darling test is a statistical test of whether a given sample of data is drawn from a given probability distribution.  In its basic form, the test assumes that there are no parameters to be estimated in the distribution being tested, in which case the test and its set of critical values is distribution-free.  However, the test is most often used in contexts where a family of distributions is being tested, in which case the parameters of that family need to be estimated and account must be taken of this in adjusting either the test-statistic or its critical values.  When applied to testing whether a normal distribution adequately describes a set of data, it is one of the most powerful statistical tools for detecting most departures from normality. The Frogman is a high-end model of the Casio G-Shock line of watches.  It was one of the first models of the "Master of G" line, a line of G-Shock watches designed for special uses.  The Frogman has an asymmetric shape and is attached eccentrically on its straps.  It is specially made as a diving watch for scuba divers and is the only ISO 6425-compliant G-Shock line with a 200 m Divers rating. A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks.  The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified test pressure.  Pressure tightness can be tested by shutting off the supply valve and observing whether there is a pressure loss.  The location of a leak can be visually identified more easily if the water contains a colorant.  Strength is usually tested by measuring permanent deformation of the container.  Hydrostatic testing is the most common method employed for testing pipes and pressure vessels.  Using this test helps maintain safety standards and durability of a vessel over time.  Newly manufactured pieces are initially qualified using the hydrostatic test.  They are then re-qualified at regular intervals using the "proof pressure test" which is also called the "modified hydrostatic test".  Testing of pressure vessels for transport and storage of gases is very important because such containers can explode if they fail under pressure. A blocked rotor test is conducted on an induction motor.  It is also known as short circuit test, locked rotor test or stalled torque test.  From this test, short circuit current at normal voltage, power factor on short circuit, total leakage reactance, and starting torque of the motor can be found.  The test is conducted at low voltage because if the applied voltage was normal voltage then the current through the stator windings would be high enough to overheat the windings and damage them.  The "blocked rotor torque test" is not performed on wound-rotor motors because the starting torque can be varied as desired.  However, a "blocked rotor current test" is conducted on squirrel cage rotor motors. Test compression is a technique used to reduce the time and cost of testing integrated circuits.  The first ICs were tested with test vectors created by hand.  It proved very difficult to get good coverage of potential faults, so Design for testability (DFT) based on scan and automatic test pattern generation (ATPG) were developed to explicitly test each gate and path in a design.  These techniques were very successful at creating high-quality vectors for manufacturing test, with excellent test coverage.  However, as chips got bigger the ratio of logic to be tested per pin increased dramatically, and the volume of scan test data started causing a significant increase in test time, and required tester memory.  This raised the cost of testing. G-Shock is a line of watches manufactured by Casio, designed to resist mechanical shock and vibration.  Its full form is Gravitational Shock.  They are designed primarily for sports, military and outdoors-oriented activities; nearly all G-Shocks are digital or a combination of analog or digital and have a stopwatch feature, countdown timer, backlight and water resistance.

Supporting sentences:
 They are designed primarily for sports, military and outdoors-oriented activities; nearly all G-Shocks are digital or a combination of analog or digital and have a stopwatch feature, countdown timer, backlight and water resistance. Water Resistant is a common mark stamped on the back of wrist watches to indicate how well a watch is sealed against the ingress of water.  It is usually accompanied by an indication of the static test pressure that a sample of newly manufactured watches were exposed to in a leakage test.