Here is the complete, fully polished English description for the Seiko 150m Quartz Diver (7548-7000), incorporating all of your finalized facts—including the vintage lume, perfect bezel action, and the authentic vintage deadstock (NOS) DAL1AZ strap package. It is 100% ready to be copied and pasted directly into Catawiki. Catawiki Listing Template (SEIKO 7548-7000) Title: Seiko 150m Quartz Diver JDM "7548-7000" (March 1983) - Fresh Battery, Kanji Day Wheel - Includes Vintage Deadstock (NOS) Genuine SEIKO "DAL1AZ" Strap in Original Retro Packaging Description: A historical and highly sought-after masterpiece among vintage watch collectors: the Seiko 150m Quartz Diver (Ref. 7548-7000), manufactured in March 1983 (Serial No. 332784). As Seiko’s very first professional quartz diver’s watch, the 7548 series laid down the design DNA for generations of legendary Seiko/SKX-series. This particular specimen is the coveted JDM (Japanese Domestic Market) version, featuring the rare and highly collectible English / Kanji (日本語) day wheel. Double-Strap Collector's Package: Strap 1 (Currently Fitted): A high-quality black leather strap manufactured by BAMBI (a prestigious Japanese strap maker) with a vibrant yellow backing, offering a sophisticated look for daily casual wear. Strap 2 (The Grail Accessory): An incredibly rare, vintage genuine SEIKO Urethane Diver Strap (Ref. DAL1AZ 22). This is a true Vintage Deadstock / New Old Stock (NOS) item, 100% brand new and sealed in its original, retro orange/blue "SPORTS" card packaging with the vintage Japanese price tag (¥2,500) still intact. Unlike modern, plain-packaged service replacements, this is an authentic vintage-era deadstock item that perfectly preserves the historical aesthetic and collectibility of the watch. It is in museum-grade, pristine condition with zero degradation or stiffness. [Product Details] Brand: SEIKO (Japan) Model: 150m Quartz Diver (JDM Version) Reference: 7548-7000 Movement: Cal. 7548 High-Torque Quartz Production Date: March 1983 (Serial No. 332784) Case Size: Approx. 42 mm (excluding crown) / 45 mm (Lug-to-Lug) / 14 mm (Thickness) Lug Width: 22 mm Functions: Day/Date (English/Kanji), Bi-directional rotating bezel, Screw-down crown. Accessories: Watch body, BAMBI leather strap, Vintage Deadstock genuine SEIKO DAL1AZ 22 strap in original retro packaging. [Condition & Functionality] Movement: A fresh high-quality battery has been installed on July 14, 2026. The movement runs strong, keeps highly accurate time, and the day/date quickset functions perfectly. Dial & Hands: 100% original, untouched. No rust or noticeable degradation on the hands or markers. The vintage lume still reacts well to light and glows properly (shown under light/UV). The markers have aged into a beautiful, warm vintage cream patina. Bezel & Case: The bi-directional bezel has absolutely no stiffness—it rotates smoothly with very crisp, firm clicks. The case and original hardlex crystal show honest micro-scratches consistent with its 43-year history, adding to its authentic vintage character. Note: As this is a vintage timepiece, water resistance cannot be guaranteed. [Shipping & Security] Safely packed and shipped via premium courier with full tracking and transit insurance. The packing process is fully video-recorded for mutual security to prevent delivery disputes.