ISE Movements
The ISE caliber (Irreversible Schwarz Etienne) is an ‘inverted’ self-winding mechanical movement, based on the ASE caliber. Its inversion provides an original unveiling on the dial, its decentered micro-rotor, as well as its regulating organ whose variable inertia balance ensures precision and regularity. Operating at 21,600 vibrations per hour, it offers a comfortable power reserve of more than 86 hours. The properties of the ISE caliber allow it to accommodate various modules with complications including the innovative date revealing system of the ISE 100.01.
ISE 100.00
Specifications
Caliber
ISE 100.00
Type
Manufactured automatic with micro-rotor "Irreversible" ISE 100.00
Functions
Hours, minutes
Small seconds at 11 o’clock
Technical characteristics
Stop second
Micro-rotor at 9 o'clock
Diameter
30.40 mm (13 ¼’’’)
Thickness
6.30 mm
Diameter of casing
30.00 mm
Decoration
Main plate : fine sandblasted
Mobiles (wheels): circular graining
Steel components: satin finishing and sunray
Micro-rotor: hand bevelling and micro-blasting
Screws: polished
Bridges
Hand bevelling
Fine micro-blasting
Frequency
3 Hz (21'600 Alt/h)
Balance wheel
Balance wheel with fixed inertia, manufactured in-house incorporating the marque’s SE logo
Spiral
Phillips flat spiral terminal coil manufactured by E2O
Power reserve
86 hours
Components
191
Jewels
36
Additional information
The ISE100.00 caliber is an evolution of the ASE100.00. The inverted time indication allows to reveal in an original way the mechanism, its dial-side regulating organ and micro-rotor.
ISE 101.01
Specifications
Caliber
ISE 101.01
Type
Manufactured automatic with micro-rotor "Irreversible" ISE 101.01
Functions
Hours, minutes
Small seconds at 11 o’clock
Technical characteristics
Stop second
Micro-rotor at 9 o'clock
Diameter
30.40 mm (13 ¼’’’)
Thickness
6.30 mm
Diameter of casing
30.00 mm
Decoration
Main plate : fine sandblasted
Mobiles (wheels): circular graining
Steel components: satin finishing and sunray
Micro-rotor: hand bevelling and micro-blasting
Screws: polished
Bridges
Hand bevelling
Fine micro-blasting
Frequency
3 Hz (21'600 Alt/h)
Balance wheel
Balance wheel with fixed inertia, manufactured in-house incorporating the marque’s SE logo
Spiral
Phillips flat spiral terminal coil manufactured by E2O
Power reserve
86 hours
Components
191
Jewels
36
Additional information
The cover of the ISE101.01 micro-rotor's oscillating-weight is personalized. Laser-cut, it echoes the famous profile of the Swiss mountain's distinctive north face.
ISE 100.11
Specifications
Caliber
ISE 100.11
Type
Manufactured automatic with micro-rotor "Irreversible" ISE 100.11 with visible date module QSE
Functions
Hours, minutes
Small seconds at 11 o'clock
Date at 2 o'clock
Micro-rotor at 9 o'clock
Technical characteristics
Stop second
Quick date corrector at 4 o'clock
Micro-rotor at 9 o'clock
Diameter
30.40 mm (13 ¼’’’)
Thickness
6.30 mm
Diameter of casing
30.00 mm
Decoration
Main plate : fine sandblasted
Screws: polished
Complication bridges: étirage finish, hand bevelling and satin finishing
Complication steel components: étirage finish, hand bevelling and satin finishing with laser ablation, circular graining, block polishing
Bridges
Hand bevelling
Fine micro-blasting
Frequency
3 Hz (21'600 Alt/h)
Balance wheel
Balance wheel with fixed inertia, manufactured in-house incorporating the marque’s SE logo
Spiral
Phillips flat spiral terminal coil manufactured by E2O
Power reserve
86 hours
Components
241
Jewels
36
Additional information
The caliber ISE101.11 incorporates an innovative date mechanism:
1. The date mechanism is entirely visible
2. The jumper for indexing the date is positioned on a column wheel. This aesthetically superb solution reduces the size of the date disc teeth and increases the size of the numbers for improved readability.
3. The date disc is inclined at 10 ° making it more legible.
4. The date operates through a drive system, equipped with a safety mechanism preventing any risk of breakage (a technique used on perpetual calendars).
5. The quick date correction is performed by a lever with an 'all or nothing/on-off' mechanism to ensure a complete function with each user's pressure.
Additional information

Entirely manufactured in-house, including the hairspring, the balance wheel features an exclusive design feature. On balancing it draws the brand’s SE initials.