© Hamilton International Ltd. Official image of H78585333; not a film still.
Hamilton
Khaki Navy BeLOWZERO 1000m Auto
H78585333
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© Zenith. Official image of reference 03.A780.400-T/01.M3642 published by Hypebeast.
Zenith
DEFY Chronograph USM – TimeForArt Unique Piece
03.A780.400-T/01.M3642
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| Specification | HamiltonKhaki Navy BeLOWZERO 1000m Auto | ZenithDEFY Chronograph USM – TimeForArt Unique Piece |
|---|---|---|
| Reference | H78585333 | 03.A780.400-T/01.M3642 |
| Winding | Automatic winding | Automatic winding |
| Calibre | ETA 2826-2 | El Primero 400 |
| Diameter | 46 mm; thickness 16.7 mm | 37 mm |
| Size / thickness | 46 × 16.7 mm | 37 mm |
| Power reserve | 42 hours | 55 hours |
| Case material | Black PVD-coated steel; 46 × 16.7 mm | Not stated in the review |
| Functions | Not stated in the review | Not stated in the review |
| Crystal | Not stated in the review | Not stated in the review |
| Water resistance | Not stated in the review | Not stated in the review |
| Price and market | Not stated in the review | Not stated in the review |
Hamilton · Khaki Navy BeLOWZERO 1000m Auto
Strengths
A rare case where the maker identifies the screen reference clearly. BeLOWZERO has a memorable silhouette, but try its 46 × 16.7 mm case before buying.
Things to consider
The 100 bar rating is a factory specification, not a test of a pre-owned example. The photograph shows the watch model, not a film still.
Review date: 7 October 2026
Hamilton — Khaki Navy BeLOWZERO H78585333 and The MartianZenith · DEFY Chronograph USM – TimeForArt Unique Piece
Strengths
A persuasive design exercise built around the proven El Primero 400. This is a one-off auction piece, not a new mechanical platform.
Things to consider
The mirrored dial may produce glare; we have not tested its legibility. The final price will only be known after the auction.
Review date: 7 October 2026
Zenith — DEFY Chronograph USM TimeForArt press releaseTimeForArt — Zenith | USM lot details