Sugess S455 Blue Goldstone Automatic Dress Watch — ST2130, 38mm, 8.9mm, Sapphire

Sugess S455 Blue Goldstone Automatic Dress Watch — ST2130, 38mm, 8.9mm, Sapphire

The Sugess S455 is a 38mm automatic dress watch powered by the Seagull ST2130 — a high-beat caliber — presenting a no-logo minimalist dial in blue goldstone, black sunburst, green sunburst or blue sunburst finishes. At 8.9mm total case thickness (11.5mm with domed crystal) and 54 grams it is among the slimmest and lightest automatics in the Sugess range. Sapphire crystal front and rear, 316L stainless steel case, genuine leather strap or optional steel bracelet, 50m water resistance.

Available in seven colour configurations across silver and rose gold case hardware.

Key Specifications

Variants — Seven Configurations

Blue goldstone / silver case / navy strap: The defining variant of the S455 — deep blue goldstone dial with silver hardware on navy leather. The goldstone’s metallic fleck scatter creates the watch’s signature celestial appearance.

Black sunburst / silver case / black strap: A radially polished black dial on silver hardware with black leather — the highest-contrast and most formally conservative configuration.

Green sunburst / silver case: A green sunburst dial on silver hardware. The sunburst finish creates a directional shimmer on the green field.

Green sunburst / rose gold case: Green dial on rose gold hardware — a warm/cool contrast pairing.

Blue sunburst / rose gold case / brown strap: A blue sunburst dial on rose gold case with brown leather. The warmest blue configuration — rose gold hardware warms the cool blue field.

Black / rose gold: Dark dial with rose gold case — formal and statement-oriented.

Aventurine: A variant using aventurine material — similar in character to the blue goldstone but with a different mineral structure and colour distribution. The aventurine dial’s sparkle is produced by natural mineral inclusions.

Blue Goldstone Dial — What It Actually Is

Blue goldstone is a manufactured glass material, not a natural mineral. It is produced by fusing glass with cobalt or manganese oxide under controlled conditions that cause metallic copper or other metallic particles to precipitate and suspend throughout the glass matrix as it cools. The result is a deep blue glass containing thousands of evenly distributed bright metallic flecks.

The optical effect — known by gemologists as aventurescence — creates a visual impression of scattered bright points on a dark field, which reads under ambient light as similar to a night sky or a body of water reflecting starlight. As the viewing angle changes, different flecks catch the light source and brighten while others darken, creating continuous motion across the dial surface.

Blue goldstone is distinct from natural aventurine (used on the Proxima PX1721) — aventurine is a natural quartz mineral with mica inclusions, while blue goldstone is a manufactured glass. Both create aventurescence but by different means and with different colour characters.

Note: the spiritual and symbolic properties attributed to blue goldstone in some product listings are cultural and traditional associations with the material. The optical properties described above are the physical basis for its appearance.

Seagull ST2130 — High-Beat at 8.9mm

The ST2130 is a Seagull automatic movement running at 28,800 vph — 8 beats per second rather than the 6 of standard 21,600 vph movements. The higher beat rate produces a smoother-appearing seconds sweep and finer timekeeping resolution.

The ST2130 is also a slim movement — its reduced profile is what enables the 8.9mm case thickness. The movement is visible through the sapphire exhibition caseback, which shows the decorated rotor and movement bridges with specification engravings around the perimeter.

At 8.9mm the S455 is one of the thinnest automatic watches in the Sugess range and in this price category overall.

Blue Crown Jewel

The crown carries a blue jewel cabochon — a small polished dome of blue stone or glass set into the crown’s end face. The blue crown accent matches the blue goldstone dial’s colour palette in the blue variants and adds a small colour accent at the 3 o’clock case edge visible when the watch is on the wrist.

No Lume — Pure Dress Watch

The S455 has no luminous material. It is designed as a formal dress watch where visual clarity in controlled lighting is the priority and low-light readability is not required. For buyers who need lume, the Sugess S423 Chrono Heritage or the Proxima PX1733 are the appropriate alternatives in the range.

38mm, 45mm Lug-to-Lug, 54g

The compact dimensions make the S455 appropriate for wrists down to approximately 15.5cm circumference — the 45mm lug-to-lug will fit without overhang on most adult wrist sizes including smaller wrists where 40–42mm watches are proportionally too large. At 54g it is among the lightest automatics at Jewelry Addicts — noticeably lighter than steel bracelet watches (the Cadisen C8247 at 145g for comparison) and lighter than most leather strap watches in this category.

Who Is the Sugess S455 For?

The S455 is built for:

• Blue goldstone dial buyers who want the celestial sparkle appearance in an ultra-slim 38mm automatic — the most accessible blue goldstone watch at this price
• Ultra-slim dress watch buyers who want under 9mm case height with a high-beat Seagull movement
• No-logo minimalist aesthetic buyers — the clean no-text dial is a specific preference within the dress watch community
• Small wrist buyers who need the 38mm / 45mm lug-to-lug combination for correct proportional fit

How It Compares

vs. Sugess S452 Moonphase — The S452 adds moonphase and pointer date complications at 13mm thickness. The S455 is the slim time-only alternative at 8.9mm.

vs. Sugess S449 MOP Heritage — The S449 uses mother of pearl dial with day-date in a formal bracelet configuration. The S455 is the slim no-complication alternative with goldstone or sunburst dial.

vs. Proxima PX1721 Aventurine — The PX1721 uses natural aventurine at 200m with full BGW9 lume. The S455 is the slim no-lume dress watch alternative with blue goldstone.

vs. Carnival 8017 Bauhaus — The 8017 is 8mm at 38mm, minimalist automatic. The S455 is 8.9mm with the distinctive goldstone or sunburst dial at 38mm — same size category, different dial character.

More from Jewelry Addicts

• Sugess S452 Moonphase — Sugess moonphase complication alternative
• Sugess S449 MOP Heritage — MOP dial day-date alternative
• Proxima PX1721 Aventurine — natural aventurine dial alternative
• Carnival 8017 Bauhaus — slim minimalist automatic alternative
• Best Automatic Watches Under $200 — full roundup

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