Seestern · Factory brand · China

Seestern S478

Ref. S478 · In production · GMT

From $330 to $340
  • Peacock SL3032
  • 39.5 mm × 12 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Type
Automatic
Tier
Mid
Complications
Date, GMT
Frequency
28,800 bph
Power reserve
40 h
Hacking
Yes
Accuracy (factory)
—

Case

Diameter
39.5 mm
Lug to lug
—
Thickness
12 mm
Lug width
—
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
Display
Bezel
24-hour GMT

Crystal & dial

Crystal
Sapphire
Shape
Domed
Anti-reflective
—
Lume
Lume on hands and indices (type not stated)

Bracelet

Bracelet
—

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
White Dial, Blue BezelSteel braceletStreet329.99 USD$3302026-10-24link
Black Dial, Black and Red BezelSteel braceletStreet339.99 USD$3402026-10-24link
White Dial, Blue and Red BezelSteel braceletStreet339.99 USD$3402026-10-24link
Yellow Dial, Black BezelSteel braceletStreet329.99 USD$3302026-10-24link

Variants

NameReferenceDialBezelConfiguration
White Dial, Blue BezelS478.Ewhiteblue ceramic insertSteel bracelet
Black Dial, Black and Red BezelS478.Kblackblack and red sapphire insertSteel bracelet
White Dial, Blue and Red BezelS478.Wwhiteblue and red sapphire insertSteel bracelet
Yellow Dial, Black BezelS478.Yyellowblack insertSteel bracelet

About this entry

60% of key specs known. Missing: lug-to-lug, lug width, weight, hardening, AR coating, bracelet offered.

Seestern's "Series: S478", a GMT sold on Sugess's store as four listings: S478.E white dial with a blue ceramic bezel insert, S478.K black dial (gold-tone hands and markers) with a black and red insert, S478.W white dial with a blue and red insert, and S478.Y yellow dial with a black insert. The store's text doesn't describe the bezels; the materials are from its SKU names ("blue ceramic bezel" for E, "sapphire bezel" for K and W, nothing for Y), and K and W cost $10 more. Brand specs: 316L case, 39.5mm, 12mm thick (whether this includes the domed sapphire crystal is not stated), screw-down crown, exhibition caseback, steel bracelet with a folding clasp "with micro-adjust system" (type not stated), Peacock SL3032 (28 jewels, 4Hz, 35h+ per the store; Peacock says at least 40h), 100m. The store's tags also say "Seiko NH34", but the spec table names the SL3032, so that is recorded. The 24-hour bezel scale and lumed hands, indices and (on the E) bezel are from the product photos. Lug-to-lug, lug width, bezel action, AR coating, lume type and weight 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