Sinn · Family: 104
The Sinn 104 St Sa I is the German Frankfurt brand's classic pilot's watch — a three-hand model with day and date, not a chronograph, unlike the Sinn 103 Sa. It has a 41mm polished steel case, a bidirectional pilot's bezel, and 200 meters of water resistance. Cazador has no verified price observations (n=0) for this reference as of today.
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Sinn was founded in 1961 in Frankfurt am Main, Germany, by pilot and engineer Helmut Sinn, who oriented the brand from the outset toward instrument watches built for aviation. The 104 family, internally described by Sinn as its classic pilot's watch ('Die Klassische Fliegeruhr'), represents the three-hand expression of that philosophy, as opposed to the 103 Sa — the pilot's chronograph that does carry a timing complication.
The 104 St Sa I runs the Sellita SW 220-1 caliber, an automatic movement with day and date functions, protected against magnetic fields to the DIN 8309 standard — a technical certification Sinn applies systematically across much of its instrument-watch catalog, a direct legacy of its aviation-oriented origins.
The 41mm polished steel case carries the signature bidirectional pilot's bezel with an aluminum insert and a 60-minute countdown scale, a visual identity element shared with the rest of the 104 family and other pilot models from the brand. The sapphire crystal extends to the display case back, allowing a view of the movement's finishing.
[UNVERIFIED: we do not precisely confirm the exact launch year for this specific configuration ('St Sa I'), nor whether it remains in active catalog as of July 2026].
Cazador has no verified price observations for this reference (0 PricePoints recorded as of July 2026). We do not publish estimates without our own sourced market data.
No. The 104 St Sa I is a three-hand watch with day and date. The equivalent pilot's chronograph in Sinn's catalog is the 103 Sa.
The Sellita SW 220-1 caliber, automatic, with 26 jewels, day-and-date function, and anti-magnetic protection to the DIN 8309 standard.
It carries 200 meters (20 bar) of water resistance, a generous figure for a pilot's watch, though its primary purpose is aviation rather than diving.
Sinn was founded in 1961 in Frankfurt by pilot and engineer Helmut Sinn, oriented toward aviation instrument watches from its origin.
It's a German technical standard for resistance to magnetic fields that Sinn applies systematically across much of its instrument-watch range.