Compare › Black Bay GMT 79830RB vs Black Bay 58 GMT 7939G1A0NRU
Tudor Black Bay GMT 79830RB vs Tudor Black Bay 58 GMT 7939G1A0NRU
Which one holds its value, sells faster and costs less? Five rounds, scored on real recorded eBay sales.
Sales data through November 4, 2026 (all brands) · last 12 months
WON0
Sells over retail
ROUND 1Easier to resell
ROUND 2Investment grade
ROUND 3Cheaper to buy today
ROUND 41-year price trend
ROUND 5What matters most to you?
Pick one and we'll call it.
Price history
Typical resale value over time. Hover or tap the chart.
Side by side
| Black Bay GMT 79830RB | Black Bay 58 GMT 7939G1A0NRU | |
|---|---|---|
| Typical sale | $3,400 | $4,200 |
| Middle half of sales | $3,054 to $3,750 | $4,000 to $4,493 |
| Boutique retail | $5,275 | $5,650 |
| vs retail | -36% | -26% |
| Sales, 12 months | 320 | 105 |
| 1-year trend | +11% | +1% |
| Grade | B+ (78) | C (64) |
| Today's call | hold | watch |
Quick answers
Which holds its value better, the Tudor Black Bay GMT 79830RB or the Tudor Black Bay 58 GMT 7939G1A0NRU?
The Black Bay GMT 79830RB. It grades B+ (78/100) against C (64/100), and sells 36% under retail vs 26% under.
Which is cheaper to buy used?
The Black Bay GMT 79830RB: typical eBay sale $3,400 vs $4,200 for the Black Bay 58 GMT 7939G1A0NRU.
Which is easier to resell?
The Black Bay GMT 79830RB, with 320 recorded eBay sales in the last 12 months vs 105.
More head-to-heads
Typical sale is the median recorded eBay sale (buyer-paid, before seller fees, each listing counted once). Retail is the current US boutique price where one exists. Grades and today's call come from the Crown Index Vaults. Past prices are not a forecast. Some outbound links are affiliate links.