Roma
Small Seconds
Specifications
WRO15MA27RB21AA
Material
18ct rose gold 5N
Diameter
42 mm
Height
12.13 mm
Glass
domed saphhire crystal with anti-reflection treatment
Water resistance
5 ATM / 50 m
Caliber
ASE 100.00
Type
Manufacture automatic movement with micro-rotor
Diameter
30.40 mm (13 ¼’’’)
Height
5.35 mm
Functions
hours, minutes
small second at 6 o'clock
Power reserve
86 hours
Frequency
3 Hz (21'600 Alt/h)
Dial
brass, silver
black Arabic numeral and gold appliques at 3, 6 and 9 o’clock
Hands
gold-treated brass
Strap
full skin brown alligator, hand-sewn with orange alligator lining
Buckle
pin buckle in 18ct rose gold 5N with Schwarz Etienne logo
Manufacture mouvement
ASE 100.00
Diameter
30.40 mm (13 ¼’’’)
Thickness
5.35 mm
Decoration
Main plate : sandblasted (fine)
Mobiles (wheels): circular grained
Steel components: satin finished with sunray decoration
Micro-rotor: lacquered and snail motif
Screws: polished
Bridges
hand bevelled and adorned with Côtes de Genève motif

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.

A high-end construction, the micro-rotor permits the integration of an ultra-compact automatic winding mechanism. For maximum efficiency, and despite its reduced diameter, winding is bidirectional. This elegant solution ensures the caliber can be admired in all its splendour. The oscillations of the micro-rotor on the dial side add dynamism to the design.