55 Years Old Vintage SEIKO Diver Capitan Willard Automatic Ref. 6105-8110 / Cal. 6105B / Vintage 1970s / Serviced

You save 369,00 EUR right away
The service and identification document is included in the price.

Collector Notes & Dating

Seiko’s iconic cushion-case diver, reference 6105-8110, better known to enthusiasts as the “Willard.” This example retains the correct locking crown at 4 o’clock and an honest steel case with period tool marks on the screw back—true to its life as a purpose-built 150 m diver.

Inside beats Seiko’s in-house automatic Cal. 6105B (date, hacking), a 17-jewel workhorse running at ~21,600 vph. The movement has just been fully serviced on 27.09.2025; timing, regulation, lubrication, and final QC were completed, and a service certificate is included.

The watch wears beautifully thanks to the rounded cushion profile: ~43 mm case (ex-crown) and 20 mm lugs. It is fitted with a tropic-style rubber strap for a period look. The crystal is mineral (Seiko Hardlex type), the dial/original handset present a clean, tool-watch character, and the rotating bezel adds the right vintage diver energy. Water resistance is not guaranteed on vintage pieces, so treat as splash-resistant only.

A crisp, serviced 1970s Seiko diver that delivers the design language collectors love—locking crown, bold markers, and ultra-reliable 6105B—ready to wear and enjoy.

SPECIFICATIONS
Movement: Automatic, Cal. 6105B, 17 jewels, ~21,600 vph; freshly serviced 09/2025 — certificate included
Dial: Original Seiko diver dial and hands; date at 3; even vintage wear (see photos)
Crystal: Mineral (period-correct Hardlex); clean user wear
Case: Stainless steel cushion case with screw back; honest tool marks from use
Size: 43 mm (without crown) — Lug width: 20 mm
Crown: Signed locking crown at 4 o’clock; functions correctly
Strap/Bracelet: Tropic-style rubber 20 mm
Water-Tightness: Splash Water Resistant (handwashing ok, not showering)
Box / Packaging: Box — Secure black travel watch case

An iconic, serviced 1970s Seiko diver — robust, collectible, and ready for daily wear.

📦 What’s Included
Box/Case: Secure black travel watch case.
Documents: Invoice and our service certificate worth €369 — included free of charge

🚚 Shipping, Returns
Insured worldwide shipping. 14-day inspection (unused, seals intact). Pro packing with tracking.

🛎️ Call-to-Action
Questions or an offer? Click “Negotiate Your Price.” Serious collector inquiries welcome.

🔧 Included Service Benefits

💰 If you ever decide to sell the watch, a documented service will significantly enhance its market appeal and resale value.

🛠️ A professional service worth €369 — included free of charge.

The service includes:
Full disassembly, ultrasonic cleaning, and lubrication using Moebius synthetic oils
Regulation and timing adjustment
Ultrasonic case and bracelet cleaning (if applicable)
Final technical & aesthetic inspection

📄 An official service certificate is provided, listing key technical and identifying details — ideal for insurance, provenance, or future resale.

🛡️ This ensures peace of mind and removes the need for servicing for the next 3–5 years.