Early 1970s Zenith Sporto | Ref. GR 720003 | Cal. 2562C | Vintage 1970 | Serviced

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The service and identification document is included in the price.

Early 1970s Blue-dial Zenith Sporto with 4:30 date and original star crown — freshly serviced 09/2025.

Collector Notes & Dating

Case ref. GR 720003 paired with manual cal. 2562C places this Sporto in the early 1970s. Full movement/case numbers are kept for buyer documents. Period details—“SWISS MADE T” dial, star crown, acrylic crystal—are consistent with the era.

SPECIFICATIONS

Movement: Manual-wind, Cal. 2562C, 17 jewels, ~28,800 a/h, freshly serviced 09/2025 (certificate included)

Dial: Original blue sunburst “Sporto”; applied batons; minor honest aging; “SWISS MADE T”

Crystal: Acrylic crystal (period-correct)

Case: Stainless-steel case; internal ref. GR 720003

Size: 36 mm (without crown) — Lug width: 18 mm

Crown: Original Zenith star-signed crown

Strap/Bracelet: New black leather strap, 18 mm

Water-Tightness: Splash Water Resistant (handwashing ok, not showering)

Box / Packaging: Box — Secure black travel watch case

A documented-service Zenith Sporto in wearable 36 mm with a striking blue dial — ready to enjoy.

📦 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.