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Longines’ High-Frequency Seventies Spirit
Vintage Longines Ultra-Chron reference 8429 belongs to the brand’s early high-frequency wristwatch programme, introduced in 1966. Produced circa 1970, it is powered by the 17-jewel automatic calibre 431, combining centre seconds, a date and a 36,000-vph beat rate. The stainless-steel case frames a refurbished black dial with applied baton indexes and a date aperture at 3 o’clock. This is a focused expression of Longines’ technical ambition at the turn of the decade, with clean, purposeful styling that remains compelling to the contemporary collector.
Horlogedossier
Belangrijke details, zonder overbodige drukte.
01Specificaties+
- Merk / model
- Longines Ultrachron
- Referentie
- 8429
- Geschatte productie
- circa 1970
- Kastmateriaal
- stainless steel
- Kastdiameter
- 37 mm
- Lug-to-lug
- 38 mm
- Dikte
- 11 mm
- Wijzerplaat
- refurbished
- Glas
- acrylic
- Kroon
- signed
- Band / armband
- Leather Strap
- Uurwerk
- automatic
- Kaliber
- 431
- Juwelen
- 17
- Serienummer uurwerk
- 5067****
- Waterbestendigheid
- Splash resistant only; not suitable for swimming or immersion
02Service en herkomst+
Laatst onderhouden: 5 oktober 2026
The service includes the following operations: • Disassembly of the watch • Movement overhaul: dismantling • Cleaning, reassembly and lubrication • Use of Moebius synthetic oils • Ultrasonic cleaning of the case • Reassembly of the case and the watch • Final technical and aesthetic checks
03Levering en retourneren+
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