Seestern · Factory brand · China

Seestern Chronograph

Ref. S443 · Limited · Chronograph

Design reference: Tudor Pelagos FXD Chrono

Seestern Chronograph S443.E with blue dial and bezel on blue rubber strap
Photo: Seestern
  • Seestern Chronograph S443.K with black dial and bezel on black rubber strap
  • Seestern Chronograph S443.P with black dial, pink accents and pink rubber strap
  • Seestern Chronograph S443.Y with black dial, yellow accents and black rubber strap
  • Seestern Chronograph S443.E angled view
From $265
  • Seagull ST1901
  • 40 mm × 13 mm
  • Sapphire crystal
  • 50 m water resistance

Movement

Type
Hand-wound
Tier
Mid
Complications
Small seconds, Chronograph
Frequency
21,600 bph
Power reserve
—
Hacking
—
Accuracy (factory)
—

Case

Diameter
40 mm
Lug to lug
48.6 mm
Thickness
13 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
50 m
Crown
—
Case back
—
Bezel
—

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
—
Lume
BGW9 on hands and indices

Bracelet

Bracelet
Not offered

Straps

Strap 1
Rubber

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street264.99 USD$2652026-10-24link

Variants

NameReferenceDialBezelConfiguration
BlueS443.EblueblueBlue rubber strap
BlackS443.KblackblackBlack rubber strap
PinkS443.Pblack with pink accentsgreyPink or black rubber strap
YellowS443.Yblack with yellow accentsgreyBlack rubber strap

About this entry

73% of key specs known. Missing: weight, hardening, AR coating, crown.

Sold as "Seestern Chronograph Limited" (Series: Seestern Chronograph Limited), model code S443, one listing per colour, all $264.99; the S443.P listing offers a pink or a black rubber strap at the same price. The brand calls it limited but gives no edition size. Brand specs: 316L case, 40mm, 48.6mm lug-to-lug, 13mm thick, 20mm lugs, sapphire crystal, 50m, rubber strap, "Super BGW9" lume on hands and indices, hand-wound column-wheel Seagull ST1901 (small seconds and 30-minute counter, 45h power reserve as stated by the brand). No bracelet is offered. Dial and bezel colours are from the product photos; bezel material and action, crown type, caseback and weight are not stated. The pink and yellow listings went up in February 2026, the blue and black in January 2026. The store's "compare at" prices are not recorded.

Last verified: 2026-10-25. Edit or correct this entry.

Sources