The Watch
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The Doxa Sub 300T line is one of the brand's most recognizable watches. It was the first commercially made dive watch with various colour dials and no-decompression bezel. These watches were made with functionality in mind. From the burly shape of the case to the application of the maximum amount of tritium allowed by law on the dial for legibility, these tool watches were meant to be used.
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Colours of the Original Sub300Ts were:
Yellow: Diving Star
Orange: Professional
Silver: Searambler
Black: Sharkhunter
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The Sub300t's are one of the most iconic Vintage Dive Watches out there, Thanks in no small part to the Dive Icon Jacques Cousteau.
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Jacques Cousteau owned and wore a Doxa Sub300T. Cousteau, who at the time was the head of U.S. Divers, was so impressed by the Doxa Sub300T that he became a distributor of the reference in the United States and co-branded the dial of the Sub300T with the U.S. Divers logo.
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This particular Professional is in very good order and quite possibly all original, including boasting its very uncommon Original BoR Expandro Bracelet. The Watch dates from c.1968-1975, we know this as in 1968 Synchron purchased Doxa and started using their branding on the sub300t.
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View this Underwater Explorer in a Video: here
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We also have the pleasure of offering an extremely rare 1st Generation Professional Sub 300, the Watch that started it all, you can view that: here
The Specs
Age: c.1968-75.
Movement: Automatic
Calibre: Doxa/Synchron Calibre 58 (ETA 2783). Quickset date.
Timekeeping: Keeping very good time.
Service History: Fully Serviced April 2023.
Dial: Original Doxa Factory Dial.
Case: All Stainless Steel.
Measurements: Without/With Crown: 42.5mm/45.2mm End of Lug to Lug: 45mm
Bezel: Uni-Directional 60 Click Bezel. Red Chapter Ring.
Water Resistant?: No.
Hands: Original Handset.
Crystal: Original.
Crown: Original Synchron Signed Crown.
Strap/Bracelet: On its Original Synchron Beads of Rice Expandro Bracelet, rare to find, fits up to approx 8in when expanded.
Lug Width: 20mm
Getting Acquainted
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Bits that stand out:
- Hefty Case!
- Dial is in Superb Order. Lume in incredible shape.
- 60 Click Bezel.
- Iconic Model.
- Rare Original Bracelet.
-Very possibly all Original.
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Nitty Gritty:
-Light Scratches throughout the Case, with a strange bit of lipping which probably occurred during use.
- Inner Bezel has lost a small bit of its paint.
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Overall the Professional is in very nice used condition.
The Handset is Original.
The Dial is in lovely condition.
Dial and Hand lume is original Tritium and is in beautiful condition.
Crystal is very possibly original, it has a few scratches, nothing major at all.
Original Signed Synchron Crown.
Original Bracelet.
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Photographed on a 7in Wrist.