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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001292055</issuerCik>
        <issuerName>Symmetry Medical Inc.</issuerName>
        <issuerTradingSymbol>SMA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001298841</rptOwnerCik>
            <rptOwnerName>Conroy James A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>METRO CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>ONE STATION PLACE</rptOwnerStreet2>
            <rptOwnerCity>STAMFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1855581</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8810719</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>468957</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F5"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>77893</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F6"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Following the dispositions set forth in this Form 4, Olympus Growth Fund III, L.P. was the record owner of 8,810,719 shares of common stock, Olympus Executive Fund, L.P. was the record owner of 77,893 shares of common stock and OGP III, L.L.C. was the record owner of 468,957 shares of common stock. (continued footnote 2)</footnote>
        <footnote id="F2">Mr. James A. Conroy, a member of our board of directors, is a partner of the Olympus funds and has a pecuniary interest in certain of those shares. Mr. Conroy disclaims beneficial ownership of the common stock owned by the above entities, except to the extent of his proportionate pecuniary interest therein.</footnote>
        <footnote id="F3">On September 15, 2005, Olympus Growth Fund III, L.P. made a pro-rata distribution of common stock, without consideration, to its partners, which include its general partner, OGP III, L.L.C., which received 416,129 shares.  The receipt of such shares by OGP III, L.L.C. represents a change in the form of beneficial ownership.</footnote>
        <footnote id="F4">Represents shares directly owned by Olympus Growth Fund III, L.P. Shares beneficially owned by Olympus Growth Fund III, L.P. are beneficially owned indirectly by OGP III, L.L.C., its General Partner; by RSM, L.L.C., the Managing Member of OGP III, L.L.C.; and by Mr. Robert S. Morris, the Managing Member of RSM, L.L.C.</footnote>
        <footnote id="F5">Represents shares directly owned by OGP III, L.L.C. Shares beneficially owned, both directly and indirectly, by OGP III, L.L.C. are beneficially owned indirectly by RSM, L.L.C., the managing member of OGP III, L.L.C.; and by Mr. Robert S. Morris, the managing member of RSM, L.L.C.</footnote>
        <footnote id="F6">Represents shares directly owned by Olympus Executive Fund, L.P. Shares beneficially owned by Olympus Executive Fund, L.P. are beneficially owned indirectly by OEF, L.P., its General Partner; by RSM, L.L.C., a General Partner of OEF, L.P.; and by Mr. Robert S. Morris, the Managing Partner of OEF, L.P. through his capacity as Managing Member of RSM, L.L.C.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Manu Bettegowda, under power of attorney for James A. Conroy</signatureName>
        <signatureDate>2005-09-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
