The original Tudor Snowflake Submariner - Prince Oysterdate. This watch was produced prior to the 9411/0. The 7021/0 was the first of Tudor's Submariners to feature a date and as well this watch was the first to feature the new logo (shield) instead of the older (Tudor Rose). They were also the first of Tudor's Subs to feature luminous hands and markers for easy reading when diving. Introduced in 1969 until being replaced by the 9411/0 in 1975. This specimen is all original and features a beautiful faded ghost bezel.