Ref. 103.031
The Sinn 103 St, reference 103.031, is a chronograph with a polished 41 mm steel case water resistant to 200 metres. The case measures 15.5 mm thick and has a screw-down crown. Automatic winding is provided by calibre Concepto C99001. Shock-resistant plexiglass fronts a matte black dial displaying small seconds beside luminous numerals and indices. Day and date indications sit alongside the time display. The rotating pilot's bezel carries a luminous key mark.
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TECHNICAL SPECIFICATIONS
CASE
Diameter
41mm
Thickness
15.5mm
Lug Width
20mm
Case Material
Steel
Water Resistance
200m
Crystal
Plexiglass
MOVEMENT
Movement Type
Automatic
Caliber
Concepto C99001
Frequency
28,800 vph (4 Hz)
Jewels
25 jewels
DIAL
Dial Color
Black
FEATURES & COMPLICATIONS
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1010.020
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1010.024
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Other watches with the Concepto C99001 calibre
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103 St Sa
103.061
Sinn Spezialuhren
103 St Sa Commerzbank
103.0624
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103 Ti Ar
103.071
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103 Sa G
103.172
Sinn Spezialuhren
144 St Sa C.A.D.
144.0621
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144 St Sa Sporthilfe
144.0622
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144 St Sa
144.066
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144 St S Anniversary II
144.083
QUICK FACTS
BRAND
Sinn SpezialuhrenREFERENCE
103.031COLLECTION
103MOVEMENT
AutomaticCALIBER
Concepto C99001CASE MATERIAL
SteelCRYSTAL
PlexiglassWATER RESISTANCE
200m (snorkeling)FOR WATCH DEALERS
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