Longines Conquest Ref.1577 Cal.L.636.1 35.0mm 1976

A sharp and elegant example of the mid-70s Longines Conquest, featuring a beautifully preserved silver satin dial paired with polished baton hands and applied indices. This Reference 1577 from 1976 is powered by the reliable Caliber L.636.1 automatic movement, complete with a practical quickset date function that comes with a rare half Spanish day wheel meant for the Spanish market.

With its clean dial execution, classic proportions, and understated design language, this Conquest perfectly captures the quiet sophistication Longines was known for during the era. A versatile vintage piece that easily transitions from formal to casual wear, making it an excellent addition for collectors and enthusiasts alike.

DIAL:

• Original silver satin dial in excellent vintage condition


• Polished baton hands with lume inserts


• Applied hour indices with matching polished inserts


• Applied Longines logo and original wording


• Domed acrylic crystal

CASE:

• Distinctive classic Conquest round case design with elegant curved lugs


• 35.0mm Diameter (excluding crown) / 41.0mm Lug-to-lug / 10.0mm Thickness


• Professionally polished with all sharp edges intact


• Original Longines-signed crown at 3 o’clock

CASEBACK:


• Screwdown caseback with original Longines hallmarks


• Professionally polished to perfect vintage condition


• Comes with plastic protective sticker as shown

MOVEMENT:

• Longines L.636.1 – Automatic movement


• 24 Jewels / ~42 Hour Power Reserve / 28,800 A/h


• Quickset date function (Set day and date by turning crown in 2nd position either clockwise or anti clockwise, ensure to avoid 9pm-3am when doing so)


• Movement freshly serviced and in excellent condition


• Last serviced: March 2026


• Accuracy: ~0s/day

STRAP:

• Handmade Black crocodile leather strap, 18.0mm lug width


• Aftermarket stainless steel buckle

AFTERCARE PACKAGE:

• Comes with a black presentation box + silica gel


• Complimentary PolyWatch crystal polishing kit (for acrylic crystal)


• 6-month warranty (covers non-user damage only)


• Guarantee Certificate with full service details included


• Access to our exclusive post-warranty repair services


• 7-day return policy for peace of mind

SPECIFICS:

Maker: Longines


Model: Conquest


Year: 1976


Case Material: Stainless Steel


Reference: 1577


Movement Serial: 52924021


Caliber: L.636.1


Diameter: 35.0mm


Lug to lug: 41.0mm


Lug width: 18.0mm


Thickness: 10.0mm


Lume: None


Strap: Handmade black crocodile leather strap


Box and papers: Box included, no original papers


Accuracy: ~0s/day


Movement type: Automatic


Crystal: Acrylic


Crown: Original Longines signed crown


Last service: March 2026

Free express tracked shipping with signature upon delivery. Delivery within Singapore in 1-2 working days. International shipping may take 4–16 working days depending on destination. Do note respective custom duties might apply which includes the recent US tariffs and are the buyer's responsibility.

Do note that for US bound shipments the PolyWatch polishing kit will not be included in order to mitigate customs delay due to new customs requirements

Countries that we do not ship to: Afghanistan, Belarus, the Central African Republic, Chad, Cuba, the Democratic Republic of the Congo, Eritrea, Iran, Iraq, Lebanon, Libya, North Korea, Oman, Pakistan, Qatar, Russia, Somalia, South Sudan, Syria, Ukraine and the Crimea, Donetsk, and Luhansk regions of Ukraine.

This is a vintage timepiece and water resistance is not guaranteed. Please avoid contact with water or moisture. Store the watch with dry tissue or silica gel to preserve its condition. We are not liable for water damage post-purchase.