Longines Jumbo| Pocket Watch Movement | Cal. 19.74N | Antique 1928 | Serviced

What is an antique Pocket Watch Conversion - Marriage Watch?
A marriage watch is taking an existing pocket - Longines - watch and transferring all the elements (movement, dial, hands…) to a new wristwatch case

Please consider this before bidding so as to avoid any misunderstanding. Thank you.

This 1928 Longines Jumbo pocket watch movement, caliber 19.74N, exemplifies precision Swiss craftsmanship from the early 20th century. Renowned for its robust construction and reliable performance, this antique movement is a prized component for collectors and horology experts seeking authentic vintage mechanisms. Its historical significance and meticulous engineering make it an exceptional piece for restoration or study.

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

97 years old Antique Longines 19.74N in custom 48 mm case — porcelain dial, glass back, 1928 charm.

Collector Notes & Dating
Movement no. 4789106 dates to 1928 per manufacturer tables; original porcelain dial retained. This is a tasteful conversion (“marriage”) using a new, custom stainless case with glass back and mineral crystal.

SPECIFICATIONS
Movement: Longines cal. 19.74N, manual wind, 17 jewels, 18,000 A/h
Dial: Antique porcelain, original condition
Crystal: Mineral 
Case: Custom stainless steel with glass back
Size: 48 mm (without crown)
Strap/Bracelet: Leather strap
Water-Tightness: Splash resistant (no showering/swimming)
Box / Packaging: Special customized secure black travel watch case

Large-wrist presence with genuine 1928 Longines mechanics — vintage soul, modern wearability.

📦 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.