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  • 103 A Sa

    The traditional pilot chronograph.

    103 A Sa
  • 103 A Sa
  • 103 A Sa
  • 103 A Sa

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Product number: 103.060 PDF

103 A Sa

This model is no longer available in our current collection.
103 A Sa

Which watches aren't designated as 'classics' these days? This valued label is applied to many timepieces. Yet very few really set standards of style in functional design and first-class technology. If this term were ever applicable to a watch, then most certainly to the Sinn model 103 A Sa. The features the Valjoux 7750 mechanical movement with automatic winding. The polished case perfectly matches the classic style of the watch.

103 A Sa
Special characteristics

Technical details

Valjoux 7750
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour

as per DIN 8309

The information on the mechanical movement corresponds to the current production situation in Frankfurt am Main. Due to technical changes, it may happen in individual cases that stock items of our sales partners deviate from this information.

Case made of , polished
glass in front, on both sides
Transparent case back made of glass, on the interior
Case back screw-fastened
Crown screwable
Push-pieces screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
up to 20

Hours, minutes, subsidiary seconds
Date display
Day of the week display

with minute ratcheting and key mark
Case diameter: 41 mm
Band : 20 mm
Case thickness: 17 mm
Weight without strap: 88 gramme
Matte black dial
Indices coated with luminescent colour
Hour, minute and stopwatch second hand coated with luminescent colour