Longines Conquest Conquest Automatic 29.5 Ceramic Diamond

Reference L3.299.0.87.7

About this watch

The Longines Conquest Automatic 29.5 Ceramic Diamond is a stunning blend of elegance and functionality, featuring a mother-of-pearl dial, gem-set indexes, and a luxurious bezel. Crafted from high-quality stainless steel, this 29.5mm watch boasts a classic round shape and sleek closed case back. Powered by the Longines caliber L595, it offers precision, reliability, and a 40-hour power reserve. With a water resistance of 50 meters, it's perfect for daily wear, but not suitable for diving. This luxury timepiece is ideal for fashion-forward individuals who appreciate elegant accessories, professionals looking for a versatile watch, and watch enthusiasts who value Swiss craftsmanship.

Buy Now on Jomashop

This is an affiliate link

Key Features

Automatic Movement
Mother-of-Pearl Dial
Gem-Set Indexes
Luxurious Bezel
40-Hour Power Reserve
50-Meter Water Resistance
Swiss Craftsmanship

Specifications

Brand

Longines

Family

Conquest

Model

Conquest Automatic 29.5 Ceramic Diamond

Reference

L3.299.0.87.7

Movement

l595

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 29.5mm

Dial Color

White

Crystal

Sapphire

Water Resistance

Current Listings

Longines. Hydro Conquest. 41mm. Full Kit. $975 Only.

Longines - L3.781.4.56.6 · $975

The Longines Hydro Conquest is a 41mm watch that comes with a fully linked bracelet and the expected full kit, including an undated warranty.

Condition: 9/10
Bracelet: fully linked Longines bracelet
Kit Included: everything expected
Warranty Status: undated

Posted at

Mar 30, 2026, 9:15 PM

Active

View listing on r/WatchExchange

[WTS] Longines "Conquest" 1970s/Early '80s Integrated Solid Link Bracelet Calibre L.746.2 Ref.4384 (ETA 954.111) $460 (message me if you can't see the details/description in the comments)

Longines "Conquest" 1970s/Early '80s Integrated Solid Link Bracelet Calibre L.746.2 Ref.4384 (ETA 954.111) $460 (message me if you can't see the details/description in the comments)

Longines - 4384 · $460

This is a vintage Swiss-made Longines 'Conquest' from the late-1970s or early-1980s, featuring an integrated steel sports watch design inspired by Gerald Genta's work. The watch has a subtle in-between grey and light brown dial with a vertically brushed linen texture, high polish stick indices, and a date window with a neat border.

Condition: Great condition, minor general wear
Movement: Longines calibre L.746.2 (ETA 954.111)
Bracelet length: up to roughly 18cm
Wrist size: 34mm round equivalent due to rectangular shape

Posted at

Mar 27, 2026, 10:45 PM

Active

View listing on r/WatchExchange

Longines | L3.835.4.52.6 | Conquest | $2,999

Longines - L3.835.4.52.6 · $2,999

This Longines Conquest comes in a complete set and is in preowned clean condition with minor hairline scratches throughout.

Condition: preowned clean condition with minor hairline scratches throughout
Crystal condition: may contain marks under strong magnification
Service history: unknown
Shipping: FREE 2 Day Insured FedEx Shipping

Posted at

Mar 27, 2026, 9:18 AM

Active

View listing on r/WatchExchange

Longines Conquest Heritage Central Power Reserve — Excellent Condition

Longines - Conquest Heritage Central Power Reserve · $1,999

A modern Longines Conquest Heritage model featuring a central power-reserve hand and an alligator strap, available for purchase with shipping included.

Condition: Excellent Condition
Strap material: alligator
Box included: No

Posted at

Mar 26, 2026, 6:53 PM

Active

View listing on r/WatchExchange

Longines. Hydro Conquest. 41mm. Full Kit. $975 Only.

Longines - L3.781.4.56.6 · $975

This Longines Hydro Conquest is a 41mm watch that comes in full kit with everything expected, including an undated warranty.

Condition: 9/10
Bracelet: fully linked Longines bracelet
Kit Contents: full kit with everything expected, including undated warranty

Posted at

Mar 26, 2026, 11:39 AM

Active

View listing on r/WatchExchange

Longines Conquest Rubber Strap L3.720.4.02.9 $1,699

Longines - L3.720.4.02.9 · $1,699

This Longines Conquest features a rubber strap in green, with a deployment clasp and comes with all original boxes and papers.

Condition: Brand new
Strap material: rubber
Strap color: green

Posted at

Mar 24, 2026, 2:22 PM

Active

View listing on r/WatchExchange

Longines 9004-6 Conquest Calendar (1958) — Cal. 19ASD — Freshly Serviced — $899 Shipped

Longines - 9004-6 · $899

A 1958 stainless steel Longines Conquest Calendar in excellent condition with a natural bubble patina on the dial and crisp hands. The watch has an automatic movement and features a date function via crown rotation.

Condition: Pre-owned with recently serviced movement
Movement: Cal. 19ASD automatic (18,000 vph, 19 jewels)
Case size: 35mm diameter
Lug-to-lug length: 43mm

Posted at

Mar 24, 2026, 1:55 PM

Active

View listing on r/WatchExchange