<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0607</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-08-21</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001000697</issuerCik>
        <issuerName>WATERS CORP /DE/</issuerName>
        <issuerTradingSymbol>WAT</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002152862</rptOwnerCik>
            <rptOwnerName>Wu Tong (NMN)</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O WATERS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>34 MAPLE STREET</rptOwnerStreet2>
            <rptOwnerCity>MILFORD</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01757</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SVP Waters Analytical Sciences</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Ex. 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Kimberly Larie, attorney-in-fact for Tong Wu</signatureName>
        <signatureDate>2026-08-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
