BREGUET Classique Chronograph Openworked 5284 Only Watch Edition

Swiss luxury watch brand Breguet unveils a one of a kind watch exclusively created for Only Watch 2013, the fifth edition major international charity project sponsored by the Association Monégasque contre les Myopathies.

This year’ edition of Only Watch will take place under the high patronage of H.R.H. Prince Albert II. An exceptional auction sale of one-of-a-kind or first-in-a-series watches designed especially for the occasion will be staged for the benefit of medical research on muscular dystrophy.

Designed in the grand tradition of exclusive Breguet timepieces, the model Classique Chronograph open-worked 5284 is animated by an exceptional Hand-wound movement, calibre 533.2 SQ, originally known as 2310.

BREGUET Classique Chronograph Openworked 5284 Only Watch Edition

A noteworthy fact regarding this column wheel chronograph movement is that it has long been the motor of the finest watches of many a brand. Designed in the 1940s by Albert Piguet at the Lémania workshops, the calibre CH 27 undecorated movement quickly won a reputation for its endurance and reliability.

It drew the attention of highly regarded brands, which preferred to use it for their chronographs rather than undertake the gigantic task of developing their own movement. Its popularity ensured its further evolution into the highly refined calibre 2310.

Today, Breguet brings this movement to life again by offering it a unique design. The case of reference 5284 in 18-carat yellow gold is decorated with fine fluting on the caseband, reflecting Breguet’s first timepieces.

The open-tipped hands designed around 1783 by the brand’s founder enhance the overall beauty of the movement entirely engraved by hand, which can be admired through a sapphire crystal.

Technical details

Model: BREGUET Classique Chronograph Openworked 5284 Only Watch Edition
Ref. 5284BA/10/9ZU

Case in 18-carat yellow gold with a finely fluted caseband
Sapphire-crystal caseback
42.5mm diameter
Welded lugs with screw bars.
Engraved “unique piece”
Water resistant to 3 bar (30m)

Sapphire crystal
Individually numbered and signed BREGUET
Centered chapter ring
Small seconds at 9 o’clock and 30 minutes counter at 3 o’clock
Tachometer scale around the hours chapter
Breguet open-tipped hands

Hand-wound open-worked chronograph movement
Numbered and signed BREGUET. Cal. 533.2 SQ, 12 lignes, 21 jewels
Power reserve of 48 hours
In-line Swiss lever escapement
Breguet balance spring
2.5Hz frequency
Adjusted in five positions

Leather strap

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