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Sinn 103 Klassik Dreier
Ref. 103 Klassik Dreier · Tool
Case
- Diameter
- 41mm
- Thickness
- 17.2mm
- Lug width
- 20mm
- Material
- stainless steel
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Underside
- Dial colour
- Silver
- Lume
- Luminescent
Movement
- Caliber
- Sellita SW510
- Type
- Automatic
- Beat rate
- 28,800 vph
- Power reserve
- 48h
- Jewels
- 27
- Hacking
- No
- Hand-winding
- No
- Complications
- Date, Chronograph, Pilot's Bezel
Sellita
Sellita's hand-wound chronograph caliber, the manual sibling of the automatic SW500 and compatible with the Valjoux/ETA 7750 layout, with the classic 12-6-9 subdial arrangement. It beats at 28,800 vph with roughly 48–62 hours of power reserve.
Design language
- Case shape
- round
- Dial style
- standard
- Sub-dials
- 3
- Bezel
- rotating_unidirectional
- Bracelet
- leather_strap
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Series 103 collection · 5 watches
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I cannot generate a consensus summary for Sinn 103 Klassik Dreier from these sources. **Reason:** All four source summaries describe different watches — none explicitly name "Sinn 103 Klassik Dreier." Source 1 and 4 describe "Sinn 103 St Ty Hd" (a hand-wound limited edition with a tri-compax or 3-6-9 layout and tachymeter). Source 2 references "Sinn 103 ST SA" (another variant). Source 3 discusses a bidirectional bezel but does not name a specific model. The Klassik Dreier is a distinct configuration within the 103 line, and none of these summaries can be confidently attributed to it without risking attribution of another sibling's specific traits (hand-wound movement, sub-dial layout, tachymeter, thickness figures, strap configuration) to the Klassik Dreier. **To proceed:** Please confirm that the sources actually discuss Sinn 103 Klassik Dre
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