How to recognise one
Six marks make the look. The count says how many of the 5 homages keep each one.
Bright bezel with an orange pip
0 of 5 keep it, 4 not compared yet. A pale bezel with an orange pip at 12 and a mix of black and orange numerals.
Orange dial
0 of 5 keep it, 3 not compared yet. A bright orange dial.
Markers outlined in black
Lume markers with a black border stand at the hours.
Date at 3
0 of 5 keep it, 4 not compared yet. A white date window at 3.
Cushion case
A wide, rounded case shaped like a cushion, with the lugs swept in.
Beads-of-rice bracelet
1 of 5 keep it, 4 not compared yet. A steel bracelet of small oval links in rows.
Each close-up covers about 12.5 mm of watch, using the listed case width and estimated photo edges.
Three to start with
Picked from the record by marks kept, price and size, each sold under its own maker's name, not as a Doxa.
Pagani Design PD-1719
about £138 €159.95, seen 2 Oct42.5 mm
Closest look. Keeps 1 of the 6 marks of the Doxa, more than any other homage here.
Thorn Sub 300T
about £106 $141.51, seen 2 Oct44 mm
Lowest price. The lowest price listed here.
Tactical Frog Sub 300T
about £112 $149.90, seen 2 Oct
Hangzhou 2565.
Size not listed yet
The other 2, to scale
Most marks kept first.
- Seestern S406 Aventurine Doxa
42 mm
Price not listed yet
- Seestern S411 / S425 Sub 300T
Price and size not listed yet
Drawn to scale by listed case width.
Original specifications
Sizes and specifications apply to the version named below. Other versions can differ.
SUB 300T Professional model scope
explicit SUB 300T alias; current stainless-steel Professional reference
| Specification | Value | Sources and notes |
|---|---|---|
| Case width | 42.5 mm | SUB 300T Professional | DOXASUB 300T Professional 840.10.351.10 | Hourstriker Sources agree. DOXA and Hourstriker independently agree on this exact-reference value. |
| Lug to lug | 44.5 mm | SUB 300T Professional 840.10.351.10 | Hourstriker One cited source. Single exact-reference source explicitly identifies lug-to-lug. |
| Thickness | 13.65 mm | SUB 300T Professional | DOXASUB 300T Professional 840.10.351.10 | Hourstriker Sources agree. DOXA and Hourstriker independently agree on this exact-reference value. |
| Lug width | 20 mm | SUB 300T Professional | DOXA One primary source. DOXA explicitly lists Lug width 20.00 mm for SKU 840.10.351.10. |
| Crystal | sapphire | SUB 300T Professional | DOXA One primary source. Single successful page body supports this candidate-scoped value. |
| Water resistance | 1200 m | SUB 300T Professional | DOXA One primary source. Single successful page body supports this candidate-scoped value. |
| Case length | 44.5 mm | SUB 300T Professional | DOXA One primary source. Single successful page body supports this candidate-scoped value. |
| Power reserve | 38 hours | SUB 300T Professional | DOXA One primary source. Single successful page body supports this candidate-scoped value. |
Sources and unconfirmed details
- SUB 300T Professional | DOXA, read 2026-10-07T07:53:21Z
- SUB 300T Professional 840.10.351.10 | Hourstriker, read 2026-10-07T08:30:00Z
SUB 300 Professional model scope
explicit family alias; distinct from SUB 300T; current model source found but exact reference and detailed dimensions not captured
| Specification | Value | Sources and notes |
|---|---|---|
| Case width | 42.5 mm | SUB 300 Professional | DOXA One primary source. Source version SUB 300 Professional model scope. Current DOXA page specifies 42.50 mm diameter. |
| Lug to lug | 45 mm | SUB 300 Professional | DOXA One primary source. Source version SUB 300 Professional model scope. Current DOXA page gives 42.50 x 45.00 mm case dimensions; 45.00 mm is the case-lug span listed for this contemporary model. |
| Thickness | 13.4 mm | SUB 300 Professional | DOXA One primary source. Source version SUB 300 Professional model scope. Current DOXA page lists 13.40 mm case height. |
| Lug width | 20 mm | SUB 300 Professional | DOXA One primary source. Source version SUB 300 Professional model scope. Current DOXA page lists 20.00 mm lug width. |
Sources and unconfirmed details
- SUB 300 Professional | DOXA, read 2026-10-07T07:53:21Z
821.10.351.10Shown in the photograph
Measurements belong only to the photographed 821.10.351.10 SUB 300 Professional. Other family references are not interchangeable.
| Specification | Value | Sources and notes |
|---|---|---|
| Case width | 42.5 mm | 821.10.351.10 specifications One primary source. SUB 300 Professional technical case dimensions 42.50 x 45.00 mm; this is not SUB 300T. |
| Lug to lug | 45 mm | 821.10.351.10 specifications One primary source. SUB 300 Professional technical case dimensions 42.50 x 45.00 mm; this is not SUB 300T. |
| Thickness | 13.4 mm | 821.10.351.10 specifications One primary source. SUB 300 Professional technical case dimensions 42.50 x 45.00 mm; this is not SUB 300T. |
| Lug width | 20 mm | 821.10.351.10 specifications One primary source. SUB 300 Professional technical case dimensions 42.50 x 45.00 mm; this is not SUB 300T. |
| Water resistance | 300 m | 821.10.351.10 specifications One primary source. SUB 300 Professional technical case dimensions 42.50 x 45.00 mm; this is not SUB 300T. |
| Power reserve | 38 hours | 821.10.351.10 specifications One primary source. SUB 300 Professional technical case dimensions 42.50 x 45.00 mm; this is not SUB 300T. |
Sources and unconfirmed details
- 821.10.351.10 specifications, read 2026-10-07
More about the SUB 300
Lay a homage over the DoxaAny of the 5, laid over the original at one scale
Lay a homage over the Doxa
Slide to fade from one watch to the other and compare the case shapes. The figures below describe the version shown in the photograph.
42.5Doxa SUB 300
42.5Pagani Design PD-1719
40 mm placeholderTactical Frog Sub 300T
44Thorn Sub 300TPhotos use listed case widths and automatic case-edge readings. The readings have not been manually audited. Photo proportions stay unchanged. Perspective and lug length can differ.Generic outlines use listed case widths. They do not show the watch's actual shape or lug length. Photo proportions stay unchanged. Perspective and lug length can differ.Width unknown for one or both watches. The 40 mm placeholder does not show their true relative size. Photo proportions stay unchanged. Perspective and lug length can differ.Width unknown for one or both watches. The 40 mm placeholder does not show their true relative size. Photo proportions stay unchanged. Perspective and lug length can differ.Photos use listed case widths and automatic case-edge readings. The readings have not been manually audited. Photo proportions stay unchanged. Perspective and lug length can differ.
Doxa SUB 300 photo: 821.10.351.10. Pagani Design PD-1719 photo: PD-1719 blue dial, bracelet.42 mm, 0.5 mm narrower than the Doxa
Doxa SUB 300 photo: 821.10.351.10. Seestern S406 Aventurine Doxa: generic outline, no photo.Case width unknown. Shown with a 40 mm placeholder.
Doxa SUB 300 photo: 821.10.351.10. Seestern S411 / S425 Sub 300T: generic outline, no photo.Case width unknown. Shown with a 40 mm placeholder.
Doxa SUB 300 photo: 821.10.351.10. Tactical Frog Sub 300T photo: Sub 300T checker dial, steel bracelet.44 mm, 1.5 mm wider than the Doxa
Doxa SUB 300 photo: 821.10.351.10. Thorn Sub 300T photo: Sub 300T yellow dial, yellow rubber strap, brushed case.
821.10.351.10, specifications and sources
| Measure | Doxa | Pagani Design PD-1719 |
|---|---|---|
| Case width | 42.5 mm | 42.5 mm |
| Lug to lug | 45 mm | Not listed yet |
| Thickness | 13.4 mm | 14 mm |
| Lug width | 20 mm | 20 mm |
| Movement | Not listed yet | NH38A |
| Power reserve | 38 hours | 42 hours |
| Water | 300 m | 300 m |
| Price | Not tracked here | about £138 €159.95, seen 2 Oct |
Side view
Copies
- Beads-of-rice bracelet
Not compared yet
Gives it away
- No date window
- Bezel drawn with different details
- Blue dial instead of orange
No difference noted