Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_29778616_1 (intro_date VARCHAR, price VARCHAR)
### Question:
How many intro dates have the price of 686€?
### Answer:
SELECT COUNT(intro_date) FROM table_29778616_1 WHERE price = "686€"