SeesternS430
Homage to the Tudor Pelagos
about$349
Regular price at seesternwatches.com, checked 31 Oct 2026. Marketplace prices change often.
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The Seestern S430 is a homage to the Tudor Pelagos, with a 39 mm case, 3 mm smaller. It uses an automatic movement and is water resistant to 200 m. It costs about $349 at the official store.
Side by side with the original
Compared with reference M25600TN-0001. Values marked ≈ are estimates, such as a reviewer's measurement.
| Spec | S430 | Pelagos (M25600TN-0001) | Difference |
|---|---|---|---|
| Case diameter | 39 mm | 42 mm | −3 mm |
| Lug-to-lug | ≈ 46.8 mm | Not published | Can't compare |
| Thickness | 12.5 mm | Not published | Can't compare |
| Lug width | 20 mm | Not published | Can't compare |
| Water resistance | 200 m | 500 m | |
| Movement | Automatic, Seiko NH35 | Automatic, MT5612 | |
| Power reserve | 35 h | 70 h | |
| Crystal | Sapphire | Sapphire | |
| Bezel | Ceramic bezel, Ceramic | Unidirectional rotating, graduated over 60 minutes, Matt black ceramic disc | |
| Case material | Japanese grade 2 titanium with coating | Titanium and steel, satin finish | |
| Lume | Super luminous, 3D blocks on the dial | White luminescent material on bezel graduations | |
| Bracelet | Titanium bracelet | Titanium bracelet | |
| Weight | 96 g | Not published |
- ≈ S430, Lug-to-lug: median of 2 agreeing independent measurements (46.6–46.9 mm); the maker does not publish it.
The original
Tudor
Pelagos
Reference M25600TN-0001, titanium, matt black dial, titanium bracelet
- Case
- 42 mm
- Lug-to-lug
- Not published
- Thickness
- Not published
- Water resistance
- 500 m
- Movement
- Automatic, MT5612
- List price
- $6,025
Why it scores as it does
Proportions and movement are computed from specs. Design details and functions are judged from the brand's official images. How we score
Lug-to-lug is neither published nor measured for one of the two watches, so there is not enough data to score.
Proportions— / 30
- Case diameter0 / 123 mm apart
- Lug-to-lug0 / 8Not published, left out
- Thickness0 / 6Not published, left out
- Lug width0 / 4Not published, left out
Design signatures— / 40
- Snowflake hour hand with lume5 / 10Angular snowflake-style hour hand with a lume block and a square-tipped seconds hand in the official images, but the hand outline is not the original's.
- Large square hour markers8 / 8Large square lume markers with an inverted triangle at 12, as in the official images.
- Matt black ceramic 60-minute dive bezel with lume graduations4 / 8Ceramic bezel insert with lume graduations and a coin edge; reviewers describe a radial sunray texture, not a flat matt finish, and the blue variant has a blue bezel.
- Helium escape valve at 9 o'clock0 / 5No helium escape valve in the official images or on the brand page.
- Titanium bracelet with folding clasp2.5 / 5Grade 2 titanium bracelet with a folding clasp, but reviewers say it lacks a fine extension system.
- Matt black dial2 / 4Black variant has a dark dial with a faint sunray; the blue variant is blue.
Functions and materials— / 20
- Complications0 / 8No date window; the original has a date.
- Bezel action2 / 4Rotating ceramic bezel with 120 clicks and bidirectional per reviewers of early units; the brand does not state the action, and the original's bezel is unidirectional with a 60-minute scale.
- Case and bezel materials2 / 4Titanium case and bracelet with a ceramic insert; the original is titanium and steel.
- Crystal shape and date window4 / 4Flat sapphire with no cyclops, as on the original's sapphire.
Movement type— / 10
- Movement type10 / 10Same movement type.
What reviewers and owners say
Reviewers
From 5 reviews we read or watched, 1 of them with a watch supplied by the brand.
Every review found for this model covers early units (NH38 or ST2130 movement, no date), not the current V2 with an NH35, so this summary only repeats points that do not depend on the version. Reviewers liked the light, compact titanium case, which they put at 46.6 to 46.9 mm lug to lug (one measured 39.7 mm across), and found the lume strong across the markers, hands and a fully lit bezel. The dial and bezel were praised for execution, and the case finishing, with several brushed surfaces, was called good.
On the early units reviewers found the bezel light or loose (one noted slight backplay), the clasp gapped or hanging down (three reviewers), and the bracelet below the brand's usual standard; the brand reportedly changed the bezel and clasp afterwards. Whether the current V2 still has these points is not known. One early-unit reviewer found scratches on the brushed titanium within a day and a half and thought the surface is not hard-coated; this is one source only.
Good
- Light titanium case, about 96 g
- Compact 39 mm width with a 12.5 mm thickness
- Strong lume on markers, hands and bezel
- Ceramic bezel and sapphire crystal at a low price
- Several case finishes, brushed rather than uniform
- Lume strongest on the hands and bezel, weaker on the cast indices, per one reviewer of an early unit
Less good
- Early units were reviewed with a loose or light bezel and a clasp gap; the brand reportedly changed both, not confirmed on the current V2
- No helium valve and no date, unlike the original
- Current NH35 has a ghost date position on a dateless watch
- Bracelet described as below the brand's other bracelets on early units
Versions and colours
- Black dial, titanium braceletIts own colourway, not on the originalabout $349
- Blue dial and bezel, titanium braceletIts own colourway, not on the originalabout $349
Earlier versions
- Earlier units (V1): Reviewed early units used a Seiko NH38 with no date or ghost date position (one used a Seagull ST2130). Reviewers of those units found the bezel loose or light and the clasp gapped or hanging down, and one said the brand had tightened the bezel and changed the clasp. The current listing is V2 with a Seiko NH35; none of these points has been checked on a V2 unit.
Compare
Sources
Checked 31 Oct 2026. Every figure on this page comes from one of these pages.