The Ollech & Wajs OW P-104 Selectron is a no-nonsense throwback to a time when tool watches did more than tell time—they helped you do math. Inspired by the 1969 “Selectron Calculator” designed for GE aerospace engineers and test pilots, this reborn Selectron isn’t just for flexing vintage cred. It brings back the legendary bi-directional slide rule bezel with a full logarithmic scale that lets you perform on-the-fly calculations like ratios, percentages, unit conversions, and even multiplication and division—all analog, no apps required.
The 39.5mm case stands 15.8 mm tall, giving it serious wrist presence and utility vibes. With 300 meters of water resistance and oversized Super-LumiNova-coated markers, it’s dive-ready, too. The dial layout is legible, with a 12 o’clock triangle and alternating orange-and-black minute hand that pops for quick reads. Inside, it’s powered by a Soprod Newton P092 automatic movement with a 44-hour power reserve, and you can even spec it up with a COSC-certified version for top-tier accuracy.
The first 56 numbered pieces will all be COSC editions—an added nod to collectibility for horology diehards. At $2,024, the Selectron offers real value, combining heritage, precision, and practical function in one damn cool package. Whether you’re solving problems mid-flight or want a daily driver with a legit history and high-spec chops, this Ollech & Wajs is a modern field tool built like a retro-futurist’s dream.
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