HP-01 Calculator Watch Tee

In 1977 Hewlett-Packard put a working calculator on a wristwatch. It had 28 tiny keys, a stylus tucked into the band, and a launch price of several hundred dollars. One of the great overreaches of the early digital age, and we mean that as a compliment.

• Gildan Softstyle 64000 unisex tee
• 100% ring-spun cotton on solid colors (heathers are poly blends)
• Lightweight 4.5 oz, classic fit, tear-away label
• White may read slightly off-white

Money-back guarantee. If the shirt isn't what you hoped, we'll refund it — no hassle, no twenty questions. Fewer than 1% of our customers ever use it, but it's there.

Care: machine wash cold with similar colors, tumble dry low, no bleach, no dry clean. Gildan 64000, made in Bangladesh. EU responsible person: Honson Ventures Ltd, 3 Gnaftis House flat 102, Mesa Geitonia, Limassol 4003, CY (gpsr@honsonventures.com).