Baume& Mercier William Baume Retrograde Second Limited Edition

The retrograde seconds function divides time in two: its large hand counts off 30 seconds across a graduated arc of a circle, before jumping instantly back to its starting point to begin measuring the 30 following seconds. Originally invented to save space on the dial for the display of numerous complications, it also provides a fascinating visual treat by performing its fascinating ballet.

For this retrograding interpretation of the William Baume collection, the small seconds display is highlighted by a “serpentine” shaped hand in a 30-second sector in the lower part of the dial.
This model also features a large date at 12 o’clock, a complication serving to display large date numerals by using two separate disks for the tens and the units. This new edition of the William Baume Retrograde Second watch is distinguished from the first version by its black dial and its black hand-stitched alligator strap.
Its mechanical self-winding movement may be admired through the broad sapphire crystal window in the case-back, revealing the circular-grained finish on the mainplate and bridges, the snailed barrel, the blued steel screws and the openworked oscillating weight adorned with “Côtes de Genève” and stamped with the Baume & Mercier “Phi” symbol. Its 18K red gold case comes in a 41 mm XL size. Limited, numbered edition of 179 watches.
Technical details
Model: William Baume Retrograde Second Limited Edition, Reference: M0A08840

Movement
Automatic (Lajoux-Perret 3533)
Diameter: 26mm
Thickness: 5.1mm
Jewels: 29
Power reserve: 42 hours
Frequency: 4 Hz
Vibration: 28 800 vibrations/hour
Circular-grained plate & bridges, snailed barrel, openworked oscillating weight decorated with “Côtes de Genève”, blued steel screws

Functions
Retrograde second at 6 o’clock and big date at 12 o’clock

Case
Round
Size: XL – 41mm
Thickness: 9.6mm
Gold weight: 48.5g
Polished/satin-finished 18 carat red gold case, horns fitted on to the case
Polished/satin-finished 18 carat red gold fluted crown, adorned with a polished Phi symbol
18 carat red gold case back fixed with six 18 carat red gold screws, large sapphire crystal aperture
Satin-finished 18 carat red gold snap engraved with the name of the collection and the limited edition number

Dial
Color: black
“Vieux Panier” guilloché décor, sun-satin finished minute-track & hour zones
18 carat red gold riveted appliqué indexes
18 carat red gold spear-shaped hands, serpentine-shaped hand in the retrograde seconds counter
Double-sided antiglare sapphire crystal

Strap
Hand-stitched black alligator strap, square scales, tone on tone stitching
Buckle: Polished/satin-finished 18 carat red gold pin buckle engraved with the Phi symbol.Gold weight: 5.3g

Other features
Water-resistance: 30m
Total gold weight: 53.8g
Limited and numbered edition of 179 pieces

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