Sinn Timepieces: Instrument Watch - Model 104 St Sa A (Basel 2015)

Model 104 St Sa A

The classic pilot's watch

The 104 St Sa A is a classic pilot's watch in the SINN tradition. The dial is clearly structured, with its three hands providing optimum readability of the time, date and day of the week down to the second. The pilot's bezel with minute ratcheting can be rotated on both sides and is securely attached to the case. It has a luminous triangle as key mark at the 12 o'clock position. The instrument watch has a polished stainless steel case and a crystal made of sapphire crystal which is also used for the transparent back. The transparent back allows the filigree work of the mechanical movement to be admired in all its intricacy. The 104 St Sa A is low pressure resistant and can withstand pressures of up to 20 bar.

Case made of stainless steel, polished

Captive pilot's bezel with minute ratcheting

Sapphire crystal glass

Transparent back made of sapphire crystal glass

Pressure-resistant to 20 bar (= 200 m water depth)

Low pressure resistant

Mechanical Movement

SW 220-1
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN 8308
Anti-magnetic as per DIN 8309

Case

Case made of stainless steel, polished
Sapphire crystal glass in front, anti-reflective on both sides
Transparent case back made of sapphire crystal glass, anti-reflective on the interior
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar (= 200 m water depth)
Low pressure resistant