Original Fifty Fathoms divers from the 1950s and 1960s were fitted with tritium lume, and that aged material is the hardest thing for any counterfeit to reproduce. Knowing how to spot fake Fifty Fathoms tritium saves you from paying vintage money for a modern redial. Use this guide as a checklist the next time you inspect a dial, whether you are collecting or comparing a homage.
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What does genuine tritium patina look like?
Real tritium ages from cream toward deep pumpkin, and it never ages evenly. Look for a soft gradient where the hour plots, hands, and bezel pip have darkened at slightly different rates, plus fine crazing in the varnish under a loupe. Fakes usually show one flat tan color applied across every marker, with no depth or variation.
Key Features
- Organic, uneven patina across plots, hands, and bezel pip — never a sprayed-on uniform tan
- Broad sword hands with a domed lume fill that sits proud of the metal frame
- Matte, slightly granular dial surface instead of a glossy reprint
- Bezel insert with crisp, evenly cut numerals and a pip aged in step with the dial
- Caseback and movement engraving in the correct font, depth, and position
- Screw-down crown with the right thread pitch and a cleanly stamped logo
- Printed text with sharp edges and no halos, bleed, or fuzzy serifs
- Case proportions and lug profile matching the reference being copied
Which materials and specs should you check?
A credible vintage-style Fifty Fathoms uses a brushed or polished stainless steel case with sharp lug bevels, a domed sapphire or acrylic crystal with the correct distortion at the edges, and a unidirectional rotating bezel with firm, defined clicks. The movement should wind smoothly, hack cleanly where specified, and hold steady time, and the dial should carry no leftover dust, adhesive, or tool marks around the markers, which are the usual tells of a relumed or reprinted face.
Fifty Fathoms Tritium Replica AAA Quality Guide
How do shipping and returns work?
Orders ship in discreet protective packaging with tracking, and every piece is inspected and photographed before it leaves the workshop. If the watch does not match the description when it arrives, returns are accepted within the standard window, so you can inspect the dial and case in hand before deciding.
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Do you need a loupe or a UV light?
A ten-power loupe reveals crazing, paint edges, and tool marks that phone photos hide. A UV light helps confirm that the lume no longer glows, since dead tritium should be inert rather than glowing brightly like fresh paint.