Seamaster Diver 300M 42.5 Nekton “Nekton Edition”
MSRP $8,000 — grey market -6%
eBay asking prices
48 active listings · as of 2026-07-31
What's your watch worth?
Adjust condition and completeness to estimate this specific watch's value.
- Excellent — full-set baseline
- Discontinued+5%
Estimate based on your inputs — not a formal appraisal.
Market References
Variant guide
Partnered with the Nekton ocean research foundation; titanium construction reduces overall weight.
Buyer's guide
Titanium build appeals to buyers wanting a lighter daily-wear dive watch than the standard steel version.
Seller's guide
Titanium cases show wear differently than steel; note any brushing or surface marks honestly.
