Reference Material Case
diameter
(mm)
Water-
resistance
(m)
Movement Functions Frequency Power
reserve
(hours)
COSC Poinçon
de
Genève
Diagram
Classic
Yachting
168463 ST 43.50 100 self-winding Chronograph,
countdown
4 Hz or
28,800 vibrations
per hour
42
l
– Fig. 11
Jacky Ickx
161262
161286
168543
168998
ST, RG 42.40 50 self-winding Flyback chronog raph 4 Hz or
28,800 vibrations
per hour
40
l
– Fig. 7
Mille Miglia
Chronograph
151274
158511
161274
168511
178511
ST, RG 42.00 50 self-winding Chronograph 4 Hz or
28,800 vibrations
per hour
42
l
– Fig. 7
158331
168331
ST 39.00 30 self-winding Chronograph 4 Hz or
28,800 vibrations
per hour
40
l
– Fig. 7
158920
168920
ST 40.50 50 self-winding Chronograph 4 Hz or
28,800 vibrations
per hour
40
l
– Fig. 7
161297
168580
ST, RG 46.00 50 self-winding Flyback chronog raph 4 Hz or
28,800 vibrations
per hour
60
l
– Fig. 9
TECHNICAL FEATURES
RG = 18-carat rose gold ; ST = stainless steel; ST-D = stainless steel with diamonds; ST DLC = DLC blackened stainless steel; TI = titanium
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