Longines Master Collection Master Collection Small Seconds XL

Reference L2.640.4.78.5

About this watch

The Longines Master Collection Small Seconds XL is a masterpiece of horology that combines elegance with functionality. Founded in 1832, Longines has built a reputation for producing high-quality timepieces that reflect a commitment to precision and style. The Master Collection, where this watch belongs, embodies the brand's philosophy of blending tradition with innovation. With its classic design and modern features, this watch is perfect for those who appreciate the finer things in life. At the heart of the Master Collection Small Seconds XL lies the Longines caliber L512, a handwound movement that showcases the brand’s dedication to precision. This movement is an adaptation of the well-known ETA 6498-1, recognized for its reliability and accuracy. The watch features a round case measuring 47.5 mm in diameter, crafted from stainless steel, giving it a robust yet refined look. The beige dial offers a soft contrast to the bold Arabic numerals that mark the hours. Equipped with sapphire glass, this timepiece is designed to withstand daily life while maintaining crystal-clear visibility. The open case back allows you to admire the intricate workings of the Longines caliber L512. With a lug width of 25.00 mm and a stainless steel bracelet, the watch strikes the right balance between presence and wearability. Water resistance of 30 meters makes it suitable for everyday wear, but not designed for swimming or diving. The handwound movement offers a power reserve of 46 hours and precise timekeeping with a frequency of 21600 vibrations per hour.

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Key Features

Longines caliber L512 handwound movement
47.5mm stainless steel case diameter
Beige dial with Arabic numerals
Sapphire crystal glass for scratch resistance
30m water resistance
46-hour power reserve
21600 vibrations per hour frequency

Specifications

Brand

Longines

Family

Master Collection

Model

Master Collection Small Seconds XL

Reference

L2.640.4.78.5

Movement

l512

Movement Features

Hours, Minutes, Small Seconds

Case

Stainless Steel 47.5mm

Dial Color

Beige

Crystal

Sapphire

Water Resistance

Current Listings

Longines Master Collection Chronograph 27594783

Longines - 27594783 · $1,800

This Longines Master Collection Chronograph features a chronograph function and is accompanied by its original box and papers.

Condition: Very good, with minor dings and scratches
Case size: 40mm diameter
Water resistance: 30m

Posted at

Dec 31, 2025, 9:49 AM

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Longines Master Collection Big Date / Ref. L2.648.4.78.6 / Full Set

Longines - L2.648.4.78.6 · $1,100

The Longines Master Collection Big Date is an elegant and technically refined watch featuring a stainless steel case, silver dial, and automatic movement with hours, minutes, seconds, and prominent Big Date complication.

Condition: Near mint / like-new
Case size: 40mm diameter
Complications: hours, minutes, seconds, big date

Posted at

Dec 30, 2025, 3:54 AM

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Longines Master Collection Chronograph w/ Custom 1.5 Link for Perfect Sizing! Ref L2.629.4.78.6 - $1,500 Shipped

Longines - L2.629.4.78.6 · $1,500

This Longines Master Collection Chronograph features a classic white dial and chronograph function, making it both stylish and practical.

Condition: next to new
Bracelet size customization: custom 1.5 link for perfect sizing
Thickness: 11.7 mm
Bracelet thickness: custom 1.5 link (replace two links instead of one)

Posted at

Dec 22, 2025, 4:39 PM

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Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,200 Shipped

Longines - L2.673.4.78.6 · $2,200

This Longines Master Collection Chrono Moonphase features a 40MM case with moon phase and chronograph functions. It comes with box, warranty card, and multiple straps.

Condition: Pre-owned with minor surface marks
Case size: 40mm diameter
Straps included: 4

Posted at

Dec 22, 2025, 12:16 PM

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Longines Master Collection Moonphase Chronograph - L2.773.4.78.3

Longines - L2.773.4.78.3 · $1,950

This Longines Master Collection Moonphase Chronograph combines a chronograph, complete calendar, and moonphase in a traditional yet well-balanced design.

Condition: Very good, used condition with minor wear throughout the case
Case size: 42mm diameter
Movement type: Column-wheel automatic chronograph
Power reserve: 54 hours

Posted at

Dec 19, 2025, 12:40 PM

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