diff --git a/addons/stock/models/stock_production_lot.py b/addons/stock/models/stock_production_lot.py
index 493e9cc4c4c..03c146aeb0d 100644
--- a/addons/stock/models/stock_production_lot.py
+++ b/addons/stock/models/stock_production_lot.py
@@ -1,51 +1,38 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from openerp.osv import fields, osv
-from openerp.tools.translate import _
+from odoo import api, fields, models, _
 
 
-class stock_production_lot(osv.osv):
+class ProductionLot(models.Model):
     _name = 'stock.production.lot'
     _inherit = ['mail.thread']
     _description = 'Lot/Serial'
-    _columns = {
-        'name': fields.char('Serial Number', required=True, help="Unique Serial Number"),
-        'ref': fields.char('Internal Reference', help="Internal reference number in case it differs from the manufacturer's serial number"),
-        'product_id': fields.many2one('product.product', 'Product', required=True, domain=[('type', 'in', ['product', 'consu'])]),
-        'quant_ids': fields.one2many('stock.quant', 'lot_id', 'Quants', readonly=True),
-        'create_date': fields.datetime('Creation Date'),
-    }
-    _defaults = {
-        'name': lambda x, y, z, c: x.pool.get('ir.sequence').next_by_code(y, z, 'stock.lot.serial'),
-        'product_id': lambda x, y, z, c: c.get('product_id', False),
-    }
+
+    name = fields.Char(
+        'Serial Number', default=lambda self: self.env['ir.sequence'].next_by_code('stock.lot.serial'),
+        required=True, help="Unique Serial Number")
+    ref = fields.Char('Internal Reference', help="Internal reference number in case it differs from the manufacturer's serial number")
+    product_id = fields.Many2one(
+        'product.product', 'Product',
+        domain=[('type', 'in', ['product', 'consu'])], required=True)
+    quant_ids = fields.One2many('stock.quant', 'lot_id', 'Quants', readonly=True)
+    create_date = fields.Datetime('Creation Date')
+
     _sql_constraints = [
         ('name_ref_uniq', 'unique (name, product_id)', 'The combination of serial number and product must be unique !'),
     ]
 
-    def action_traceability(self, cr, uid, ids, context=None):
-        """ It traces the information of lots
-        @param self: The object pointer.
-        @param cr: A database cursor
-        @param uid: ID of the user currently logged in
-        @param ids: List of IDs selected
-        @param context: A standard dictionary
-        @return: A dictionary of values
-        """
-        quant_obj = self.pool.get("stock.quant")
-        quants = quant_obj.search(cr, uid, [('lot_id', 'in', ids)], context=context)
-        moves = set()
-        for quant in quant_obj.browse(cr, uid, quants, context=context):
-            moves |= {move.id for move in quant.history_ids}
-        if moves:
-            return {
-                'domain': "[('id','in',[" + ','.join(map(str, list(moves))) + "])]",
-                'name': _('Traceability'),
-                'view_mode': 'tree,form',
-                'view_type': 'form',
-                'context': {'tree_view_ref': 'stock.view_move_tree'},
-                'res_model': 'stock.move',
-                'type': 'ir.actions.act_window',
-                    }
-        return False
+    @api.multi
+    def action_traceability(self):
+        move_ids = self.mapped('quant_ids').mapped('history_ids').ids
+        if not move_ids:
+            return False
+        return {
+            'domain': [('id', 'in', move_ids)],
+            'name': _('Traceability'),
+            'view_mode': 'tree,form',
+            'view_type': 'form',
+            'context': {'tree_view_ref': 'stock.view_move_tree'},
+            'res_model': 'stock.move',
+            'type': 'ir.actions.act_window'}