Rolex NOS Zeigersatz Weißgold 18kt für Day-Date 36 mm 18239 / 118239 / 128239 6311 The hands utilize Tritium as

The hands utilize Tritium as a luminescent material

Just catched this beauty in Vienna

The patina is slightly yellowish

Rolex MKI Long E matte dial for GMT-Master 1675 with tritium lume in very good condition

whereas the back still shows its strong red colour

Rolex NOS Zeigersatz Weißgold 18kt für Day-Date 36 mm 18239 / 118239 / 128239 6311 The hands utilize Tritium asThe Rolex NOS (New Old Stock) 18kt white gold hand set is available for Day Date 36mm models, including references 18239, 118239, and 128239, as well as other models in new condition. An outstanding feature of this hand set is the SL (Super LumiNova) luminescent material in green. The green luminescent color not only gives the hands a contemporary appearance but also ensures excellent readability in low light conditions.