Auto diver comparison
Hamilton Khaki Navy Scuba Auto 40 H82335131 vs Tissot Seastar 1000 Powermatic 80 (40 mm)
Verdict. Today the Tissot Seastar 1000 Powermatic 80 (40 mm) (T120.807.11.051.00) is the better value by our formula: Value Score 34 vs 32, with 90 spec points at $875.00. The other watch costs $100.00 more. Prices as of November 3, 2026, 18:15 UTC.
Side by side
Hamilton Khaki Navy Scuba Auto 40 H82335131 vs Tissot Seastar 1000 Powermatic 80 (40 mm): specs and price
| Spec |  Hamilton Khaki Navy Scuba Auto 40 H82335131 H82335131 |  Tissot Seastar 1000 Powermatic 80 (40 mm) T120.807.11.051.00 · priced variant of 2 |
|---|---|---|
| Price on Amazon today | $975.00 | $875.00 |
| Value Score (within type) | 32 | 34 |
| Spec points | 85 | 90 |
| Spec points per $100 | 8.7 | 10.3 |
| Movement | Automatic (H-10) | Automatic (Powermatic 80) |
| Power reserve | 80 h | 80 h |
| Crystal | Sapphire | Sapphire |
| Water resistance | 100 m | 300 m |
| Screw-down crown | Yes | Yes |
| Case diameter | 40 mm | 40 mm |
| Lug-to-lug | — | — |
| Thickness | 12.9 mm | 12.6 mm |
| Lug width | 20 mm | 21 mm |
| Fits wrist from | — | — |
| Strap / bracelet | Steel | Steel |
| Made in | Switzerland | Switzerland |
| Amazon sales rank | #8,404 | #2,096 |
FAQ
Questions about the Hamilton Khaki Navy Scuba Auto 40 H82335131 and the Tissot Seastar 1000 Powermatic 80 (40 mm)
Which is cheaper on Amazon today?
As of November 3, 2026, 18:15 UTC, the Hamilton Khaki Navy Scuba Auto 40 H82335131 (H82335131) is $975.00 and the Tissot Seastar 1000 Powermatic 80 (40 mm) (T120.807.11.051.00) is $875.00; the difference is $100.00. Amazon's price at checkout applies.
Context
Where both sit among automatic dive watches
| # | Watch | Movement | Crystal | Water res. | Case diameter × lug-to-lug | Fits wrist | Spec pts | Price | Value Score | Buy |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Automatic (Seiko NH35) | Mineral | 200 m | 40 × 48 mm | ≥ 17.3 cm (6.8″) | 77 | $88.00third-party | 100 | Amazon |
| 2 |  | Automatic (F6922) | Mineral | 200 m | 41.5 × 47 mm | ≥ 16.9 cm (6.7″) | 76 | $213.15third-party | 64 | Amazon |
| 3 |  | Automatic (F6922) | Mineral | 200 m | 41.5 × 47 mm | ≥ 16.9 cm (6.7″) | 76 | $225.20third-party | 62 | Amazon |
| 4 |  | Automatic (F6922) | Sapphire | 200 m | 41.8 × 46.8 mm | ≥ 16.8 cm (6.6″) | 83 | $252.60third-party | 61 | Amazon |
| 5 |  | Automatic (F6922) | Sapphire | 200 m | 40 mm | — | 83 | $257.04third-party | 61 | Amazon |
| 6 | Automatic (4R36) | Hardlex | 200 m ISO | 45 × 48 mm | ≥ 17.3 cm (6.8″) | 81 | $485.00third-party | 44 | Amazon | |
| 7 | Automatic (4R35) | — | 200 m ISO | — | — | 72 | $476.00third-party | 42 | Amazon | |
| 8 | | Automatic (Powermatic 80) | Sapphire | 300 m | 40 mm | — | 90 | $875.00 | 34 | Amazon |
| 9 | Automatic (H-10) | Sapphire | 100 m | 40 mm | — | 85 | $975.00 | 32 | Amazon |
Amazon.com prices as of November 3, 2026, 18:15 UTC — details. third-party = sold by a marketplace seller, not Amazon (warranty may differ); ships later = not in stock today, never crowned best value.