Reference 1680 · Mark VIII · Rolex Service Replacement
Luminova Red Sub
Overview
Rolex has responded to collectors’ requests by sometimes replacing their tired old red dials with a newer red dial. The font is slightly different but the main difference is that the markers contain Luminova and will glow bright green in the dark.
The most noticeable difference is that the dial is labeled as “SWISS” at the bottom — but some also carry the “T SWISS <25” designation. This is the clearest and fastest way to identify a Luminova replacement dial in the field.
Dial Type
Rolex service replacement — Mark VIII
Lume Material
Luminova — glows bright green in the dark. Original tritium dials do not glow.
Bottom Printing
“SWISS” only, or “T SWISS <25” depending on batch
Font Difference
Slightly different font from original production dials — noticeable on close inspection
Collector Value
Significantly lower than original tritium dials. A Luminova dial in a Red Sub case is a red flag for collectors seeking originality.
Origin
Fitted by Rolex Service Centers when original red dials were deemed worn or damaged beyond acceptable condition
The Replacement Dial
Photo courtesy of M. Reitzel.
Rolex 1680 Red Submariner — Luminova replacement dial, full view
Dial Detail & Night Shot
Dial scans from MacFever, showing the Luminova markers in detail and the classic night-glow shot that makes this dial immediately identifiable.
Dial detail — note font differences and “SWISS” bottom printing. Scans: MacFever.
Night shot — Luminova markers glow bright green. Original tritium dials are completely dark.
How to Identify at a Glance
If a Red Sub glows in the dark, it has a Luminova replacement dial. Original production dials used tritium lume which long ago ceased to be active — they are silent in the dark. A glowing Red Sub is not a more desirable Red Sub.
The combination of the “SWISS” only bottom print (no depth marking), slightly different font weight, and bright green Luminova glow are the three definitive tells. Any one of them alone is enough to confirm a replacement dial. All three together leave no doubt.
Tell 1 — Bottom Print
Original dials: “200m=660ft” depth marking present. Luminova replacement: “SWISS” only, no depth figure.
Tell 2 — Font Weight
Replacement dial font is slightly different from any of the original Mark I–VI production dials. Study originals closely to train your eye.
Tell 3 — Night Glow
Bright green Luminova glow in darkness. Definitive. No original production Red Sub dial glows green.
Collector Position
A Luminova dial Red Sub trades at a significant discount. Serious collectors avoid them entirely unless seeking a wearable example at reduced cost.