Seiko Automatic Vintage Diver Style Watch – Ref. 6309-8150 – Aftermarket Dial & Bezel – Japan Made – 1970s This vintage Seiko 6309-8150 is an eye-catching automatic wristwatch combining Seiko’s classic diver-inspired design with a vivid, modernized aesthetic. The watch has been tastefully restored with high-quality aftermarket components while retaining its original case, back, and mechanical movement. Dear Buyer, Dial , hands , case back , bracelet are aftermarket. 'This watch contains aftermarket customisations without permission from the brand. This could impact the watch value and might void manufacturer warranties. The brand might refuse servicing and repairs to watches modified by unlicensed watchmaker ⸻ Specifications • Brand: Seiko • Model: Diver Style Automatic • Reference Number: 6309-8150 • Calibre: Seiko 6309A – 17 jewels, automatic • Case Material: Stainless steel • Case Diameter: Approx. 41 mm (excluding crown) • Lug Width: 18 mm • Dial: Aftermarket metallic orange sunburst with luminous markers and hands • Bezel: Aftermarket red/black (“Coke”) diver-style rotating bezel • Crystal: Mineral glass (excellent condition) • Bracelet: Aftermarket stainless-steel Seiko-style bracelet • Day/Date: English + Kanji, quickset • Water Resistance: Not guaranteed today • Caseback: Original, marked “Seiko Stainless Steel 6309-8150”, serial number 344827, Japan • Production Year: Approximately 1973 ⸻ Condition • The watch is in very good condition considering its vintage age. • Case: Recently polished with sharp edges and a strong brushed finish. • Dial: Professionally replaced with a high-quality aftermarket metallic orange sunburst dial. • Bezel: Aftermarket diver-style insert in black/red (“Coke”) tone, excellent condition. • Crystal: Clean and scratch-free. • Bracelet: Aftermarket steel bracelet, fits comfortably and complements the watch well. • Caseback: Original and clearly engraved, consistent with model reference. The overall aesthetic is bold and attractive, featuring crisp lines, strong color contrast, and a distinctive 1970s Seiko presence. ⸻ Technical Notes • The watch has been professionally serviced. • The automatic movement runs well and keeps time accurately for a vintage model. • Day/date functions work correctly. • The rotating bezel turns smoothly. • Please note that water resistance is not guaranteed due to age and restoration. ⸻ Shipping & Handling • The watch will be securely packed with care and protective materials. • Photos and video documentation will be taken before shipment. • Worldwide express shipping via FedEx, UPS, or DHL. • Import duties, customs, and VAT are the buyer’s responsibility. • No returns unless the item is significantly not as described. ⸻ Important Notes for Buyers This is a vintage timepiece; proper handling is essential. Avoid water, magnetic fields, or shocks. Timekeeping tolerance may differ slightly from modern standards. ⸻ A beautifully restored Seiko 6309-8150 automatic watch with a striking orange dial and bold diver-style bezel – an ideal choice for collectors and enthusiasts of vintage Seiko design.