diff --git a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQuery.java b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQuery.java
index 35d990430..c2e17af60 100644
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQuery.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQuery.java
@@ -18,13 +18,14 @@ package org.springframework.data.mongodb.repository.query;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import org.bson.types.ObjectId;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.data.mongodb.core.MongoOperations;
 import org.springframework.data.mongodb.core.query.BasicQuery;
 import org.springframework.data.mongodb.core.query.Query;
 
+import com.mongodb.util.JSON;
+
 /**
  * Query to use a plain JSON String to create the {@link Query} to actually execute.
  * 
@@ -55,12 +56,9 @@ public class StringBasedMongoQuery extends AbstractMongoQuery {
 	}
 
 	/*
-	  * (non-Javadoc)
-	  *
-	  * @see
-	  * org.springframework.data.mongodb.repository.AbstractMongoQuery#createQuery(org.springframework.data.
-	  * repository.query.SimpleParameterAccessor, org.springframework.data.mongodb.core.core.support.convert.MongoConverter)
-	  */
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.repository.query.AbstractMongoQuery#createQuery(org.springframework.data.mongodb.repository.query.ConvertingParameterAccessor)
+	 */
 	@Override
 	protected Query createQuery(ConvertingParameterAccessor accessor) {
 
@@ -99,17 +97,6 @@ public class StringBasedMongoQuery extends AbstractMongoQuery {
 	}
 
 	private String getParameterWithIndex(ConvertingParameterAccessor accessor, int index) {
-
-		Object parameter = accessor.getBindableValue(index);
-
-		if (parameter == null) {
-			return "null";
-		} else if (parameter instanceof String || parameter.getClass().isEnum()) {
-			return String.format("\"%s\"", parameter);
-		} else if (parameter instanceof ObjectId) {
-			return String.format("{ '$oid' : '%s' }", parameter);
-		}
-
-		return parameter.toString();
+		return JSON.serialize(accessor.getBindableValue(index));
 	}
 }
diff --git a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/AbstractPersonRepositoryIntegrationTests.java b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/AbstractPersonRepositoryIntegrationTests.java
index 5d436cd8e..072177203 100644
--- a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/AbstractPersonRepositoryIntegrationTests.java
+++ b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/AbstractPersonRepositoryIntegrationTests.java
@@ -64,13 +64,14 @@ public abstract class AbstractPersonRepositoryIntegrationTests {
 	List<Person> all;
 
 	@Before
-	public void setUp() {
+	public void setUp() throws InterruptedException {
 
 		repository.deleteAll();
 
 		dave = new Person("Dave", "Matthews", 42);
 		oliver = new Person("Oliver August", "Matthews", 4);
 		carter = new Person("Carter", "Beauford", 49);
+		Thread.sleep(10);
 		boyd = new Person("Boyd", "Tinsley", 45);
 		stefan = new Person("Stefan", "Lessard", 34);
 		leroi = new Person("Leroi", "Moore", 41);
@@ -430,4 +431,24 @@ public abstract class AbstractPersonRepositoryIntegrationTests {
 		assertThat(result.size(), is(1));
 		assertThat(result, hasItem(dave));
 	}
+
+	/**
+	 * @see DATAMONGO-425
+	 */
+	@Test
+	public void bindsDateParameterForDerivedQueryCorrectly() {
+
+		List<Person> result = repository.findByCreatedAtLessThan(boyd.createdAt);
+		assertThat(result.isEmpty(), is(false));
+	}
+
+	/**
+	 * @see DATAMONGO-425
+	 */
+	@Test
+	public void bindsDateParameterForManuallyDefinedQueryCorrectly() {
+
+		List<Person> result = repository.findByCreatedAtLessThanManually(boyd.createdAt);
+		assertThat(result.isEmpty(), is(false));
+	}
 }
\ No newline at end of file
diff --git a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/Person.java b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/Person.java
index 2c2b8cb31..34d6f2366 100644
--- a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/Person.java
+++ b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/Person.java
@@ -15,6 +15,7 @@
  */
 package org.springframework.data.mongodb.repository;
 
+import java.util.Date;
 import java.util.Set;
 
 import org.springframework.data.mongodb.core.geo.Point;
@@ -42,6 +43,7 @@ public class Person extends Contact {
 	private Integer age;
 	@SuppressWarnings("unused")
 	private Sex sex;
+	Date createdAt;
 
 	@GeoSpatialIndexed
 	private Point location;
@@ -75,6 +77,7 @@ public class Person extends Contact {
 		this.age = age;
 		this.sex = sex;
 		this.email = (firstname == null ? "noone" : firstname.toLowerCase()) + "@dmband.com";
+		this.createdAt = new Date();
 	}
 
 	/**
diff --git a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/PersonRepository.java b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/PersonRepository.java
index aca794603..43165e6a4 100644
--- a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/PersonRepository.java
+++ b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/PersonRepository.java
@@ -16,6 +16,7 @@
 package org.springframework.data.mongodb.repository;
 
 import java.util.Collection;
+import java.util.Date;
 import java.util.List;
 
 import org.springframework.data.domain.Page;
@@ -153,4 +154,15 @@ public interface PersonRepository extends MongoRepository<Person, String>, Query
 	GeoPage<Person> findByLocationNear(Point point, Distance maxDistance, Pageable pageable);
 
 	List<Person> findByCreator(User user);
+
+	/**
+	 * @see DATAMONGO-425
+	 */
+	List<Person> findByCreatedAtLessThan(Date date);
+
+	/**
+	 * @see DATAMONGO-425
+	 */
+	@Query("{ 'createdAt' : { '$lt' : ?0 }}")
+	List<Person> findByCreatedAtLessThanManually(Date date);
 }
diff --git a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/config/MongoNamespaceIntegrationTests.java b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/config/MongoNamespaceIntegrationTests.java
index 4f280a7a5..a82eb6e1f 100644
--- a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/config/MongoNamespaceIntegrationTests.java
+++ b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/config/MongoNamespaceIntegrationTests.java
@@ -26,7 +26,7 @@ public class MongoNamespaceIntegrationTests extends AbstractPersonRepositoryInte
 
 	@Before
 	@Override
-	public void setUp() {
+	public void setUp() throws InterruptedException {
 		super.setUp();
 		factory = new DefaultListableBeanFactory();
 		reader = new XmlBeanDefinitionReader(factory);