Praesidus Vince Speranza A-11vsYema Flygraf Bi-Compax French Air Force

Owners widely praise the Praesidus Vince Speranza A-11 for its vintage aesthetic, readable dial, and distinctive top-hat crystal. However, community members report mixed accuracy, with one owner experiencing a gain of 24 seconds per day and another noting the lume on the hands is disappointing. One owner experienced a broken crystal after a drop, though it was replaced by the brand. On balance, owners appreciate the Praesidus Vince Speranza A-11 for its vintage charm and unique crystal, despite some reservations about lume and timekeeping consistency.

Owners widely praise the Yema Flygraf Bi-Compax French Air Force for its attractive, toolish aesthetic and excellent quality for the price, noting the legible Type A dial and 40mm titanium case. However, the acrylic crystal scratches easily, and the titanium case is prone to marking. The mecha-quartz movement's chrono timer sweeps rather than ticks, and one owner questions the purpose of the oversized crown. The in-house Yema 2000 movement is accurate at +/- 10 seconds per day but has a 42-hour power reserve, and some owners express concerns regarding Yema's past quality control and customer service. On balance, owners rate the Yema Flygraf Bi-Compax French Air Force highly for its attractive design and value, despite concerns about material durability and brand service history.