Vintage Longines Conquest Titanium and 18K Yellow Gold Quartz Watch

Watch (Luxury Timepiece) · Yellow Gold (classic warm tone), likely alloyed with copper and silver to maintain the traditional 18K Swiss yellow hue.

Purity: 18K (750 fineness) solid gold accents. This represents 75% pure gold alloyed with 25% other metals for strength. The main body is titanium.

Vintage Longines Conquest Titanium and 18K Yellow Gold Quartz Watch

Type

Watch (Luxury Timepiece)

Purity

18K (750 fineness) solid gold accents. This represents 75% pure gold alloyed with 25% other metals for strength. The main body is titanium.

Gold Type

Yellow Gold (classic warm tone), likely alloyed with copper and silver to maintain the traditional 18K Swiss yellow hue.

Weight

Total weight approx 45-55g; the gold content is relatively low, estimated at 3-5g of 18K gold found in the bezel ring and bracelet center links.

Description

An elegant example of Swiss engineering, this Longines Conquest features a lightweight titanium chassis complemented by luxurious 18K yellow gold accents. The dark dial provides high contrast for the gold-tone hands and date aperture, epitomizing the 'executive' style of the late 80s.

Key Features

Mixed-material construction (Titanium/18K Gold), integrated bracelet design, ultra-thin Swiss quartz movement, and the signature winged hourglass branding.

Color & Finish

Gunmetal grey matte titanium contrasted with high-polish 18K yellow gold. The dial features a matte charcoal finish with gold-tone printed indices.

Hallmarks & Stamps

Longines Winged Hourglass logo on dial; 'Quartz' designation; 'Swiss Made' at 6 o'clock. Expected 750/18K hallmarks on the case back and bracelet clasp.

Dimensions Estimate

Case diameter approx 30-32mm (unisex/mid-size); Lug-to-lug length approx 36mm; Integrated bracelet width approx 16-18mm.

Gemstones & Inlays

No gemstones. Features applied gold dot indices at 12, 3, 6, and 9 o'clock positions and a date window at the 3 o'clock position.

Clasp & Closure

Integrated fold-over deployment clasp, likely made of stainless steel or titanium for durability, stamped with the Longines logo.

Chain & Links

Three-piece link integrated bracelet with titanium outer links and solid 18K yellow gold center 'barrel' links; smooth, articulated movement.

Craftsmanship Details

Precision-machined titanium components with hand-finished gold link inserts; Swiss-made quartz movement with high-precision timekeeping and date complication.

Authentication Indicators

Correct logo font and spacing; high-quality finishing on the link junctions; 'Swiss Made' alignment; consistent color of the 18K gold links (not plated appearance).

Origin & Maker

Switzerland, manufactured by Longines. Longines is a historic Swiss luxury watchmaker founded in Saint-Imier in 1832.

Era & Period

Late 20th Century (Neo-Vintage); specifically 1980s-1990s aesthetic characterized by mixed-metal 'Two-Tone' and the use of aerospace materials like titanium.

Age Estimate

Circa 1985-1995 based on the 'Quartz' branding, thin case profile, and the specific Conquest/Titanium design language of that era.

Cultural Significance

Represents the 'Quartz Crisis' aftermath where Swiss brands turned to bold, ultra-slim, and mixed-metal designs to compete with digital technology.

Condition Notes

Good; visible surface scratching on the titanium bezel and case. Some wear on the gold links. The dial and sapphire crystal appear clean. Grade: Very Good (Vintage).

Value Estimate

Market value: $450 - $750 USD. Value is based primarily on brand heritage and collectibility rather than gold melt value, which is minimal.

Care & Maintenance

Avoid ultrasonic cleaners as they can disturb the quartz movement seals. Clean with a soft cloth. Check battery every 2 years to prevent leakage/acid damage.

Similar Items

Omega Constellation Manhattan Two-Tone, Ebel Classic Wave Titanium/Gold, or the Tag Heuer Sel Series Two-Tone.

Interesting Facts

Longines was a pioneer in using titanium in luxury watches during the 1980s, marketing it for its hypoallergenic properties and extreme durability compared to steel.

Identified on 6/16/2026