Vintage Longines Automatic Watch – Caliber 431 – Swiss Made

Elegant vintage Longines automatic wristwatch produced in Switzerland around the late 1960s – early 1970s, powered by the respected Longines in-house Caliber 431 automatic movement with 25 jewels.

This watch represents the classic era of Swiss mechanical watchmaking before the quartz revolution and features a timeless minimalist design typical of Longines dress watches from the period.

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Key Features

Brand: Longines

Reference: 1506-1

Movement: Longines Caliber 431

Type: Mechanical Automatic

Jewels: 25 jewels

Country of Manufacture: Switzerland

Era: approx. 1970s

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Case

Gold plated case with 20 micron plating (Plaque Or G 20 microns)

Stainless steel case back

Original signed Longines crown

Classic vintage case design typical for Longines watches of the late 1960s–1970s.

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Dimensions

Measured with caliper:

Case width (without crown): approx. 27.8 mm

Case width (with crown): approx. 29–30 mm

Lug-to-lug: approx. 29.6 mm

Thickness: approx. 10 mm

Vintage small / mid-size watch that can be worn as a men’s dress watch or unisex piece.

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Dial

Original silver dial

Applied gold hour markers

Date window at 3 o’clock

Signed Longines Automatic

Marked T Swiss Made T indicating tritium luminous material typical for watches of this era.

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Bracelet

Stainless steel stretch bracelet (generic replacement, not original Longines).

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Movement

Powered by the respected Longines in-house Caliber 431 automatic movement, one of the reliable Swiss movements produced during the golden era of mechanical watchmaking.

The movement appears clean and the watch is running.

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Condition

Vintage condition with signs of age and use:

• scratches on acrylic crystal

• visible wear to gold plating

• bracelet shows wear

Please review all photos carefully as they form part of the description.

All items are packaged very well and securely to minimize the chance of damage during transportation.

I always provide a tracking number. The tracking number will be provided in

the VIEW ORDER DETAILS section. All customs issues are the responsibility of the buyer.

Dear buyers, please take into account when buying goods that this is not a new product, and I cannot guarantee that it will work properly, thank you for your understanding.

 

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