Teddy Baldassarre
Sinn 104 Review
Before I get into this review of the Sinn 104 St Sa I white-dial watch, I wanted to offer some of my thoughts and provide some context about the brand. Now, if you know me, you know I’m a longtime fan of Germany’s Sinn and its iconoclastic range of tool watches. all of which have that extra little bit of over-engineered oomph when compared to many of their rugged peers. Come to think of it, these watches actually have no peers, given their unique solutions to problems facing watches that actually experience adverse conditions. Sinn History & Context Founded in 1961 in Frankfurt by ex-military pilot Helmut Sinn, the brand's cultish popularity stems from its technical innovations, which include the so-called "Submarine" steel, developed for the modern German Navy and found in many Sinn dive watches. Submarine steel possesses a mechanical strength more than one and a half times that of normal steel, and additionally, it's highly resistant to magnetism, cracking, and corrosion. In fact, Sinn claims the alloy is completely resistant to prolonged exposure to salt water, something that few stainless-steel formulations can claim. Sinn also employs an additional technology for hardening both stainless steel and titanium surfaces under the Tegiment name. This treatment increases both hardness and scratch resistance even further, making for a practically bombproof finish. The caseback of the Sinn U15 Sinn also goes above and beyond when it comes to handling pressure. For its p...