SeesternS443
Homage to the Tudor Pelagos FXD Chrono
about$265
Regular price at seesternwatches.com, checked 31 Oct 2026. Marketplace prices change often.
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The Seestern S443 is a homage to the Tudor Pelagos FXD Chrono, with a 40 mm case, 3 mm smaller. It uses a hand-wound movement and is water resistant to 50 m. It costs about $265 at the official store.
Side by side with the original
Compared with reference M25827KN-0001. Values marked ≈ are estimates, such as a reviewer's measurement.
| Spec | S443 | Pelagos FXD Chrono (M25827KN-0001) | Difference |
|---|---|---|---|
| Case diameter | 40 mm | 43 mm | −3 mm |
| Lug-to-lug | 48.6 mm | Not published | Can't compare |
| Thickness | 13 mm | 13.2 mm | −0.2 mm |
| Lug width | 20 mm | 22 mm | −2 mm |
| Water resistance | 50 m | 100 m | |
| Movement | Hand-wound, Seagull ST1901 | Automatic, MT5813 | |
| Power reserve | 45 h | 70 h | |
| Crystal | Sapphire | Sapphire | |
| Bezel | Not published | Fixed, sloped into the crystal, 60-minute scale | |
| Case material | 316L stainless steel | Black carbon composite, matt finish | |
| Lume | Super BGW9 Luminous | Luminescent ceramic composite on hour markers and hands | |
| Bracelet | Rubber strap | Black jacquard-woven fabric strap with pin buckle; fixed strap bars | |
| Weight | Not published | Not published |
The original
Tudor
Pelagos FXD Chrono
Reference M25827KN-0001, cycling edition, black fabric strap
- Case
- 43 mm
- Lug-to-lug
- Not published
- Thickness
- 13.2 mm
- Water resistance
- 100 m
- Movement
- Automatic, MT5813
- List price
- $6,375
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
- Thickness5.6 / 60.2 mm apart
- Lug width0 / 42 mm apart
Design signatures— / 40
- Large snowflake hands in luminescent composite4.5 / 9Hour hand is a snowflake-style lume block; the minute hand is a plain luminous blade.
- Enlarged tachymeter chapter ring on a sloped rehaut, scaled for cycling speeds4 / 8Dial has a printed tachymeter chapter ring in the accent colour, but it is a flat printed ring, not an enlarged ring on a sloped rehaut.
- Black carbon composite case with matt finish0 / 8Satin-brushed 316L steel case, not a black carbon composite.
- Central seconds and 45-minute counter chronograph layout2.5 / 5Two sub-dials, a 30-minute counter and a small seconds dial, plus a central chronograph hand; the original has a 45-minute counter.
- Square applied hour markers shifted inward to clear the chapter ring5 / 5Square applied markers with a triangle at 12, set inside the track.
- Two direct-action pushers flanking the crown3 / 3Two cylindrical pushers flanking the crown.
- Fabric strap through fixed lugs1 / 2Fixed lugs with a rubber strap with canvas-textured sides, as in the image.
Functions and materials— / 20
- Complications4 / 8Chronograph with two sub-dials and no date, wound by hand; the original is automatic with a date.
- Bezel action0 / 4Rotating bezel with a grip edge in the images; the original's bezel is fixed.
- Case and bezel materials0 / 4316L steel case; the original is carbon composite.
- Crystal shape and date window4 / 4Sapphire crystal with no cyclops, as on the original's sapphire; the missing date window is covered under complication.
Movement type— / 10
- Movement type5 / 10Related movement type.
What reviewers and owners say
We haven't read enough independent reviews of this model to summarise them yet.
Good
- Column-wheel ST1901 chronograph (exhibition case back per the reviewer)
- Strong BGW9 lume on hands, markers and bezel per the reviewer
- Large, flat pushers per the reviewer
- Satin-brushed 316L case with a sapphire crystal
- Fixed lugs with an FKM rubber strap
Less good
- Only 50 m water resistance
- Hand-wound, with no screw-down crown
- Price is high against similar steel chronographs per the one reviewer read
- Steel case, not the original's carbon composite
Versions and colours
- Black dial with pink accents, black rubber strapIts own colourway, not on the originalabout $265
- Black dial with yellow accents, black rubber strapIts own colourway, not on the originalabout $265
Compare
Sources
Checked 31 Oct 2026. Every figure on this page comes from one of these pages.