The Sinn 104 St Sa I is a classic pilot's watch featuring a 41mm stainless steel case and a rotating countdown bezel. It is equipped with a Sellita SW220-1 movement and displays the day and date, with the dial originally featuring stick markers before an Arabic numeral version was later released.
Movement Type
Automatic
Caliber
SW220-1Jewels
26
Reserve
38
Frequency
28800
Hands
Center Seconds
Shape
Round
Lug Distance
20.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
11.50 mm
Diameter
41.00 mm
Water Resistance
200.00 m
Dial Color
Black