Seestern · Factory brand · China

Seestern S434-2

Ref. S434-2 · In production · Diver

Design reference: Glashütte Original SeaQ

Seestern S434-2.02 with black dial and black ceramic bezel on steel bracelet
Photo: Seestern
  • Seestern S434-2.04 with black dial and black ceramic bezel on black rubber strap
  • Seestern S434-2.03 with blue dial and blue ceramic bezel on steel bracelet
  • Seestern S434-2.05 with blue dial and blue ceramic bezel on blue rubber strap
  • Seestern S434-2.06 with black dial, black ceramic bezel and gold-tone bezel edge and crown on steel bracelet
  • Seestern S434-2.08 with black dial, black ceramic bezel and gold-tone bezel edge and crown on black rubber strap
  • Seestern S434-2.07 with blue dial, blue ceramic bezel and gold-tone bezel edge and crown on steel bracelet
  • Seestern S434-2.09 with blue dial, blue ceramic bezel and gold-tone bezel edge and crown on blue rubber strap
  • Seestern S434-2 display caseback showing the NH35 movement
From $193 to $230
  • Seiko NH35A
  • 39 mm × 13 mm
  • Sapphire crystal
  • 200 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Date
Frequency
21,600 bph
Power reserve
41 h
Hacking
Yes
Accuracy (factory)
-20 / +40 s/day

Case

Diameter
39 mm
Lug to lug
—
Thickness
13 mm
Lug width
—
Material
Steel (316L)
Hardening
—
Water resistance
200 m
Crown
—
Case back
Display
Bezel
60-minute dive, ceramic insert, lumed

Crystal & dial

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

Bracelet & clasp

Style
—
Links per row
—
Solid end links
—
Solid links
—
Link attachment
—
Taper
—
Quick release
—
Half links
—
Clasp
Push-button fold-over
Micro-adjust
—
Diver extension
—

Straps

Strap 1
FKM rubber, quick release, Pin buckle

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
BlackSteel braceletStreet219.99 USD$2202026-10-24link
BlackBlack FKM rubber strapStreet192.99 USD$1932026-10-24link
BlueSteel braceletStreet219.99 USD$2202026-10-24link
BlueBlue FKM rubber strapStreet192.99 USD$1932026-10-24link
Black and GoldSteel braceletStreet229.99 USD$2302026-10-24link
Black and GoldBlack FKM rubber strapStreet202.99 USD$2032026-10-24link
Blue and GoldSteel braceletStreet229.99 USD$2302026-10-24link
Blue and GoldBlue FKM rubber strapStreet202.99 USD$2032026-10-24link

Variants

NameReferenceDialBezel
BlackS434-2.02 / S434-2.04blackblack ceramic insert
BlueS434-2.03 / S434-2.05blueblue ceramic insert
Black and GoldS434-2.06 / S434-2.08blackblack ceramic insert, gold-tone bezel edge
Blue and GoldS434-2.07 / S434-2.09blueblue ceramic insert, gold-tone bezel edge

About this entry

47% of key specs known. Missing: lug-to-lug, lug width, weight, hardening, AR coating, crown, bracelet links, end links, link attachment, clasp micro-adjust.

Seestern's "Series: S434-2", sold on Sugess's store as eight listings, S434-2.02 to .09 (SKU names give the colours): .02 and .04 black dial with a steel bezel edge, .03 and .05 blue, .06 and .08 black with a gold-tone bezel edge and crown and gold-tone hands, .07 and .09 blue with gold tone; the lower number of each pair is on the steel bracelet, the higher on an FKM rubber strap. The .05 and .09 spec tables repeat the model codes of .04 and .08, taken as copy errors. A different watch from the S434 (its own series line, 39.5mm, solid caseback). Brand specs: 316L case, 39.0mm, 10mm thick or 13mm with the domed sapphire crystal, BGW9 lume, lumed ceramic bezel insert, NH35A, 200m; steel bracelet with a folding clasp, or "fluoro rubber strap with quick release" and pin buckle. The SeaQ design reference is from the store's handles for the S434 ("seaq-s434"), which shares this dial design. The 60-minute bezel scale, push-button clasp and display caseback are from the product photos. Lug-to-lug, lug width, crown type, weight and AR coating are not stated, and no review with measurements was found. The store's "compare at" prices are not recorded.

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

Sources