Citizen Promaster Diver 300M BN0085-01E "The Starburst"
The Artifact In a sea of matte black dive watches, the BN0085 stands out for two reasons: Depth and Design. First, it carries a 300-meter depth rating, exceeding the standard ISO 6425 specifications for recreational diving. It is built for pressure. Second, the dial. It features a mesmerizing radial sunburst pattern that explodes from the center. It catches the light in a way that feels industrial yet refined—like machined steel.
The Machine At its heart beats the Citizen Caliber E168, the heavy-duty variant of their Eco-Drive technology. Designed specifically for dive watches, it has high torque to push those massive luminous hands and practically infinite power reserve as long as it sees light.
The Bezel: Aggressively knurled for grip, even with neoprene gloves.
The Lume: Citizen’s proprietary blue luminous compound, applied thickly to the oversized indices for instant legibility in the dark.
The Condition Grade: Excellent. This example is in superb condition, showing minimal signs of wear.
Case & Bezel: Clean, sharp lines with no major scuffs.
Crystal: Clear and scratch-free.
Strap: Mounted on the original heavy-duty Citizen polyurethane dive strap, which remains flexible and fresh.
The Spec
Maker: Citizen
Model: Promaster Eco-Drive Diver 300m
Reference: BN0085-01E
Movement: Solar Quartz (Cal. E168)
Case Width: 44mm (Wearable, robust stance)
Water Resistance: 300 Meters (Professional Grade)
Crystal: Mineral Glass with Anti-Reflective coating
Why It Belongs Here: Most tool watches are purely utilitarian. The BN0085 manages to be a tank (300m rating) while also offering a dial texture that rivals dress watches. It is the perfect "Summer Watch"—rugged enough to drag through the surf, but sharp enough to wear to dinner.
Vintage & pre-owned pieces: One-of-one examples in hand in the Pacific Northwest — inspected, cleaned, and photographed by us so what you see is what arrives.
New & curated goods: Authentic everyday carry and field tools from makers we vouch for (WESN and Klean Kanteen), backed by manufacturer warranty.
Free US ground shipping on orders over $200 (applied automatically at checkout). New items are eligible for 14-day returns unused in original packaging. One-of-one vintage and pre-owned pieces are final sale. See Returns & Exchanges for full details.
Need a lug-to-lug measurement, additional dial macros, or servicing options before you commit? Write to concierge@uncommonartifact.com or reach out via our Contact page.
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