
Ref. 103 St Ty Hd · Tool
ETA
The workhorse Swiss automatic chronograph, introduced in 1973 and now made by ETA, using a cam-actuated (coulisse) chronograph with the classic 12-6-9 tri-compax subdial layout and a day-date at 3. It beats at 28,800 vph with around 48 hours of power reserve and is used by brands from Tudor and Sinn to Hamilton and Oris.
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Series 103 collection · 5 watches
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The Sinn 103 St Ty Hd is widely praised as a stunning, heritage-inspired pilot's chronograph with a utilitarian feel and bold red accents on a black dial. Owners note it offers a different experience compared to typical Sinn watches. It features a hand-wound Sellita SW510 M movement, a 58-hour power reserve, 20 ATM water resistance, and impact-resistant acrylic glass. The Sinn 103 St Ty Hd is priced at €2,590 and is limited to 1,000 units. On balance, owners and reviewers rate the Sinn 103 St Ty Hd highly for its unique aesthetic and tool watch attributes.
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