🕰️ Vintage Longines 6403-8 – 1956 | Manual Wind | 33mm | Cal. 23ZS

We’re delighted to present this beautifully preserved vintage Longines 6403-8 from 1956, a fine example of post-war Swiss watchmaking. With its original charm and horological pedigree, this classic timepiece offers a refined presence on the wrist and historical significance under the caseback.

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🔑 Key Features:

• Model: Longines 6403-8

• Year: 1956 (verified by serial number)

• Case Size: 33mm stainless steel

• Dial: Champagne with vintage patina

• Hour Markers: Arabic numerals at 6 and 12, stepped batons at 3 and 9, single baton markers elsewhere

• Crystal: Plexiglass (vintage correct)

• Movement: Longines 23ZS manual wind, 17 jewels

• Power Reserve: Approx. 40 hours

• Strap: Generic brown leather with pin buckle – fits wrists up to 19cm

• Water Resistance: Not water resistant due to age

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🔧 Servicing & Condition:

• ✅ Service History: Markings inside caseback show services in 1962, 1973, 1999, and 2002

• ✅ Working Order: Keeps time reliably; available with our 12-month mechanical warranty

• ✅ Condition: Vintage wear consistent with age – dial retains warm patina, case lightly worn but not polished

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📦 What’s Included:

• 🕰️ Watch only

• 🛡️ 12-Month mechanical warranty

• 🚚 Insured next-day delivery or collection from Mayfair, London

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👀 Our View:

A pure vintage piece with incredible heritage and timeless charm. The Longines 6403-8 represents the golden era of mechanical watchmaking—functional, elegant, and reliable. A must-have for collectors or first-time vintage buyers alike.