Proxima PX1721 Aventurine Dial Automatic Watch — PT5000, 200m, BGW9, Sapphire

Proxima PX1721 Aventurine Dial Automatic Watch — PT5000, 200m, BGW9, Sapphire

The Proxima PX1721 is an automatic diver watch defined by its aventurine gemstone dial — a dial made from genuine aventurine, a natural mineral that produces a deep blue-green field filled with microscopic metallic flecks that catch and refract light in a constantly shifting pattern. Powered by PT5000 or SW200 movement, with a fully-lumed BGW9 bezel, BGW9 indices and hands, domed sapphire crystal with AR coating, screw-down crown, 200m water resistance and a quick-release tapered bracelet. Manta ray engraved exhibition caseback.

Key Specifications

The Aventurine Gemstone Dial

Aventurine is a form of quartz containing small platelet inclusions — typically fuchsite (a chromium-bearing mica) that creates a deep blue-green base colour, or other mineral inclusions producing different colour bases. The metallic inclusions are flat, microscopic platelets aligned within the quartz matrix. When light enters the stone, it reflects off these platelets at different angles — creating the characteristic effect called aventurescence: a sparkling, shifting shimmer that appears to come from within the stone rather than its surface.

On a watch dial, each piece of aventurine is unique — the distribution of inclusions, their density and their orientation varies from dial to dial. No two PX1721 dials are identical.

The effect under different light conditions changes the character of the dial entirely. Under direct overhead light the aventurine appears as a deep, sparkling field with individual bright points. Under ambient room light it reads as a deep blue-green with a subtle internal shimmer. In low light the BGW9 lume on the indices frames the stone, which reads as a dark field behind bright lume markers.

Movement — PT5000 or SW200

PT5000: A reliable automatic caliber with smooth operation. Hacking and hand-winding. Used across several respected microbrands.

SW200: The ETA 2824-2 equivalent from Sellita — one of the most respected Swiss automatic movements in the mid-tier category. 26 jewels, 28,800 vph, hacking and hand-winding, approximately 38-hour power reserve. The SW200 is the premium movement option.

For buyers who want the best movement specification, select the SW200 variant. For buyers where movement origin is less critical than the aventurine dial itself, the PT5000 provides reliable daily performance.

Fully-Lumed BGW9 Bezel and Indices

The PX1721 uses BGW9 Super-LumiNova on every luminous element — the bezel markings, all hour indices and the hands. BGW9 is the blue-white formulation of Swiss Super-LumiNova and is the highest-intensity standard lume formulation available.

The fully-lumed bezel means every minute marking on the bezel glows in darkness rather than just the pip. On a dive watch this creates complete elapsed time readability in dark water environments. The contrast between the bright BGW9 markers and the deep dark aventurine dial creates maximum readability regardless of the ambient light level.

Manta Ray Caseback

The exhibition caseback is engraved with a manta ray — the Proxima brand symbol. The manta ray image frames the exhibition window through which the automatic rotor and movement are visible in operation. The engraved caseback is a finishing detail that adds character to the rear of the watch and identifies the Proxima provenance.

Bracelet — Quick-Release Tapered Design

The stainless steel bracelet tapers from the case toward the clasp and uses quick-release spring bars — released without tools by pressing the lever at each lug end. The taper creates proportional fit appropriate for the case geometry. The quick-release mechanism makes strap swaps straightforward for buyers who want to alternate between the bracelet and an aftermarket leather, rubber or NATO strap.

Bracelet assembly note: the bracelet screws are pre-set at half-tension. After resizing to your wrist, fix the screws with a small amount of thread-locking compound to prevent loosening during wear.

Who Is the Proxima PX1721 For?

The PX1721 is built for:

• Buyers who specifically want the aventurine gemstone dial — the unique, non-repeating pattern and aventurescence effect are available on very few watches at any price
• SW200 buyers who want a Swiss-movement automatic with a statement dial
• BGW9 full-lume buyers who want lume on every dial element including the complete bezel scale
• Buyers looking for a watch that reads as genuinely unique rather than a variant of a standard dial pattern

How It Compares

vs. Proxima PX1687 42mm Diver — The PX1687 is the standard diver in the Proxima range. The PX1721 is the statement piece — aventurine dial, full BGW9 lume and manta ray caseback.

vs. Proxima PX1697 39mm — The PX1697 is a compact conventional automatic. The PX1721 is the full-specification diver with gemstone dial.

vs. IXDAO IPOSE 5303 Enamel Dial — Both are watches with distinctive, non-standard dial materials. The IXDAO uses enamel; the PX1721 uses aventurine. Both are chosen for dial character over convention.

More from Jewelry Addicts

• Proxima PX1687 42mm Diver — standard Proxima diver
• Proxima PX1697 39mm — compact Proxima automatic
• Proxima PX1733 Keyboard Dial — another distinctive Proxima dial
• IXDAO IPOSE 5303 — enamel dial alternative
• Best Automatic Watches Under $200 — full roundup

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Aventurine Gemstone Dial

Fully lume index ,BGW9 blue luminova

Taper Design Bracelet,quick release structure

Notice : we had adjusted all screws in half status,so no need heating before loose the screws,you need to fix the screws by glue after resize the bracele to avoid the loose

Proxima Standard Package