1970 Tudor Submariner ref. 7021/0 “Snowflake” Black Dial

Up for grabs is a Tudor Submariner Date

7021/0 reference number

743,xxx serial number circa 1970 production

Good vintage condition case with clear numbers and without corrosion or pitting. 

Dial is a tritium “Snowflake”, black in color. This dial is a later replacement, perhaps during service. The hands glow briefly still. The date disk is original roulette with red and black alternating numbers. 

Bezel insert is a service replacement with luminova pearl. 

Bracelet is a Tudor 78360 with 593 ends, full 13 links, F date code, perhaps was added/replaced to the watch at same time as the dial swap during service? 

Caseback is original, dated 1970 inside. 

No box or papers. No documented or known service history.