Reference guide
Tudor
Black Bay GMT prices.
2 of 3 references have qualifying sold data. Each reference shows its own collection window. Data through 2026-10-20.
Lowest reference median$3,600
Highest reference median$4,100
Recorded sales145
| Reference | Sold median | 30-day change | Recorded sales | Data through |
|---|---|---|---|---|
| 7939G1A0NRTudor Black Bay GMT · 90d | No sales | — | — | — |
 79830RBTudor Black Bay GMT · 90d |
$3,600 | -7.1% | 115 | 2026-10-20 |
 79833MNTudor Black Bay GMT · 90d |
$4,100 | — | 30 | 2026-10-19 |
Black Bay GMT price index
An index needs at least two dates with sales for every reference in its basket. More observations are needed for this group.
Observed dates only. Basket: 79830RB, 79833MN. How the index works.