Automatic movement

With its refined aesthetics, the Tonda Métropolitaine cannot fail to impress with its elegance and sobriety. This creation, with its superbly crafted automatic movement, features a modern urban style that embodies today’s active woman to perfection.

The Calibre PF310 is an automatic-winding mechanical movement whose dimensions (23.9 mm diameter) are perfectly suited to a woman’s watch. The sheer excellence of its design is magnified by superb finishes, with bridges angled by hand and “Côtes de Genève” decoration. Its two series-coupled barrels ensure 50 hours of autonomous operation. Its pendulum beats at a frequency of 28,800 vibrations per hour. Comprised of 189 components, this calibre allows for the display of hours, minutes, a small second and the date.

Movement

CALIBRE
PF310
WINDING
Automatic
TOTAL DIMENSIONS
10 ½”’ – Ø 23.9 mm
THICKNESS
3.9 mm
FREQUENCY
4 Hz – 28’800 A/h
POWER-RESERVE
50 hours
NB OF COMPONENTS
189
NB OF JEWELS
28

Functions
Hours, minutes, Small second, Date

Dial
COLOUR
Blue
INDEX
18 white gold appliques
FINISHING
Polished
HANDS
Skeleton Delta-shaped

Case
DIMENSIONS
Ø 33.1 mm
THICKNESS
8.65 mm
MATERIAL
Stainless steel
NB OF DIAMONDS
72
CARATS
0.4965
WATER-RESISTANCE
30 m
BACK
Sapphire
GLASS
Anti-reflective sapphire

Bracelet
MATERIAL
Braided fabric
COLOUR
Blue

Buckle
TYPE
Pin buckle
MATERIAL
Stainless steel