My family also use 歐洲式before and it really take very long time. Since I have 2 sons and have a lot of clothes to watch. It seems the watching machince work have day long!!!
And recently, the 歐洲式 out of order and we decided to buy日本式. It only take 45 mins to finish the watching proceduer but......I start to worry it cannot rise the 洗衣粉!! you can see the 過水程序好快就完成.
The sale told me that 歐洲式 use less water and watch the clothes much more clean but take longer time.