Hand-winding chronograph with 24-hour hand complication from the Lemania 1870 family. Used in vintage Sinn 903 Navigation Chronographs with 24-hour display (903 Pl Hd 24 and 903 St Hd 24 variants) during the 1990s-2001 period. The 24-hour subdial at 12:00 made it particularly useful for distinguishing between AM and PM times during navigation and long-haul flights. A highly capable pilot's chronograph movement.
Movement Type
Manual Wind
Jewel Count
18 jewels
Power Reserve
45h
Frequency
21,600 vph (6 Hz)
Diameter
27.4mm
Height
6.7mm
Display Type
Analog
Shock Protection
Incabloc
BRAND
LemaniaTYPE
Manual WindSTATUS
DiscontinuedMANUFACTURE
ÉbaucheLAUNCH YEAR
1970CALIBER FAMILY
Lemania 1870COUNTRY
SwitzerlandALSO KNOWN AS
