Seestern · Factory brand · China

Seestern S407-600T

Ref. S407 · In production · Diver

Design reference: Doxa SUB 600T

Seestern S407-600T.E with dark blue dial and steel bezel on steel bracelet
Photo: Seestern
  • Seestern S407-600T.EC with dark blue dial and blue ceramic bezel on steel bracelet
  • Seestern S407-600T.K with black dial and steel bezel on steel bracelet
  • Seestern S407-600T.KC with black dial and black ceramic bezel on steel bracelet
  • Seestern S407-600T.O with orange dial and steel bezel on steel bracelet
  • Seestern S407-600T.OC with orange dial and black ceramic bezel on steel bracelet
  • Seestern S407-600T.S with silver dial and steel bezel on steel bracelet
  • Seestern S407-600T.SC with silver dial and black ceramic bezel on steel bracelet
  • Seestern S407-600T.T with light blue dial and steel bezel on steel bracelet
  • Seestern S407-600T.TC with light blue dial and black ceramic bezel on steel bracelet
  • Seestern S407-600T.W with white dial and steel bezel on steel bracelet
  • Seestern S407-600T.WC with white dial and black ceramic bezel on steel bracelet
  • Seestern S407-600T.Y with yellow dial and steel bezel on steel bracelet
  • Seestern S407-600T.YC with yellow dial and black ceramic bezel on steel bracelet
  • Seestern S407-600T engraved solid caseback
From $200 to $216
  • Seiko NH35A
  • 40 mm × 13.5 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
40 mm
Lug to lug
48 mm
Thickness
13.5 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
200 m
Crown
Screw-down
Case back
Solid
Bezel
—
Finishing
Brushed, polished and sandblasted

Crystal & dial

Crystal
Sapphire
Shape
Flat
Anti-reflective
Inner
Lume
Lume on hands, indices and date wheel (type not stated)

Bracelet & clasp

Style
—
Links per row
—
Solid end links
—
Solid links
—
Link attachment
—
Taper
20 → 18 mm
Quick release
—
Half links
—
Clasp
—
Micro-adjust
—
Diver extension
—

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
Dark Blue—Street199.99 USD$2002026-10-24link
Dark Blue Ceramic—Street215.99 USD$2162026-10-24link
Black—Street199.99 USD$2002026-10-24link
Black Ceramic—Street215.99 USD$2162026-10-24link
Orange—Street199.99 USD$2002026-10-24link
Orange Ceramic—Street215.99 USD$2162026-10-24link
Silver—Street199.99 USD$2002026-10-24link
Silver Ceramic—Street215.99 USD$2162026-10-24link
Light Blue—Street199.99 USD$2002026-10-24link
Light Blue Ceramic—Street215.99 USD$2162026-10-24link
White—Street199.99 USD$2002026-10-24link
White Ceramic—Street215.99 USD$2162026-10-24link
Yellow—Street199.99 USD$2002026-10-24link
Yellow Ceramic—Street215.99 USD$2162026-10-24link

Variants

NameReferenceDialBezelConfiguration
Dark BlueS407-600T.E V3dark bluesteelSteel bracelet
Dark Blue CeramicS407-600T.EC V3dark blueblue ceramic insertSteel bracelet
BlackS407-600T.K V3blacksteelSteel bracelet
Black CeramicS407-600T.KC V3blackblack ceramic insertSteel bracelet
OrangeS407-600T.O V3orangesteelSteel bracelet
Orange CeramicS407-600T.OC V3orangeblack ceramic insertSteel bracelet
SilverS407-600T.S V3silversteelSteel bracelet
Silver CeramicS407-600T.SC V3silverblack ceramic insertSteel bracelet
Light BlueS407-600T.T V3light bluesteelSteel bracelet
Light Blue CeramicS407-600T.TC V3light blueblack ceramic insertSteel bracelet
WhiteS407-600T.W V3whitesteelSteel bracelet
White CeramicS407-600T.WC V3whiteblack ceramic insertSteel bracelet
YellowS407-600T.Y V3yellowsteelSteel bracelet
Yellow CeramicS407-600T.YC V3yellowblack ceramic insertSteel bracelet

About this entry

68% of key specs known. Missing: weight, hardening, bracelet links, end links, link attachment, clasp micro-adjust.

Seestern's "Series: S407-600T", sold on Sugess's store as one listing per colourway titled S407-600T.E V3 and so on: E dark blue dial, K black dial, both with a Doxa-style steel bezel with an orange and black depth scale; EC is the dark blue dial with a blue ceramic bezel insert ("Genuine Ceramic Bezel"), $16 more. The EC spec table says "Series: S407-600Y", taken as a typo for 600T since every other spec matches. The other colourways are O orange, S silver, T light blue, W white and Y yellow dials with a steel bezel whose scale colours follow the dial, and KC, OC, SC, TC, WC and YC, the same dials with a black ceramic bezel insert (colours from the store's Chinese SKU names and the photos); the ceramic versions are $16 more, all 14 listings carry the same spec table, and the KC, SC, WC and YC tables also say 600Y. Brand specs: 316L case with brushed, polished and sandblasted finishing, 40mm without crown, 48mm lug-to-lug, 13.5mm thick, 20mm lugs, flat sapphire with five layers of inner AR, signed screw-down crown, 200m, lumed date wheel, NH35A, steel bracelet tapering 20 to 18mm with a milled clasp offering 4 micro-adjust positions (how they adjust is not stated). Lumed hands and indices and the solid caseback engraved with a wave are from the product photos. Weight, lume grade, bezel action and bracelet construction are not stated, and no written 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