Baume & Mercier William Baume Ultra Thin Limited Edition

Ultra-thin watches have always been synonymous with superior elegance and extreme technical sophistication. Baume & Mercier began to specialize in ultra-thin watches from 1920 onwards, and in 1965 the brand caused a sensation with the thinnest self-winding calendar watch of its era. Baume & Mercier is now offering a new expression of its expertise in this field with this new William Baume Ultra-Thin model.

It differs from the previous version by three new features. The WB-UT002 movement manufactured by Valfleurier for Baume & Mercier is even more efficient, endowed with a power reserve amounting to 60 hours compared with 40 hours for the previous model.

Baume & Mercier William Baume Ultra Thin Limited EditionThe watch is also 0.4 mm thicker while nonetheless remaining ultra-thin with a 6.2 mm profile. The case-back is now open to reveal the mechanical hand-wound movement, admirably adorned with “Côtes de Genève” on the mainplate and bridges, along with blued steel screws. However, this new edition retains its silvered dial with “Vieux Panier” guilloché décor, its elegant “javelin” shaped hands and its hand-stitched chestnut brown strap.

Its XL 41 mm case is crafted in 18K red gold. Limited, numbered edition of 179 watches.

Technical details

Baume & Mercier William Baume Ultra Thin Limited Edition, Reference M0A08801

Movement
Manual (WB-UT 002)
Ultra-thin
Diameter: 27.4 mm
Thickness: 2.5mm
Jewels: 19
Power reserve: 60 hours
Frequency: 3Hz
Vibration: 21 600 vibrations/hour
Plate and bridges decorated with «Côtes de Genève», sand-blasted golden wheels, polished golden balance, snailed barrel & ratchet, blued steel screws

Case
Round
Size: XL – 41mm
Thickness: 6.2mm
Gold weight: 33.5g
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: silvered
“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
Double-sided antiglare sapphire crystal

Strap
Hand-stitched chestnut brown 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: 38.8g

Edition
Limited and numbered edition of 179 pieces