I personally love my Citizen Eco-Drive Skyhawk AT Titanium (
Men's Citizen Skyhawk AT Titanium Alarm Chronograph Eco-Drive Watch (JY0010-50E) - £398.00 - WATCH SHOP.com™) but it's way OTT for practical use. Though I do use the slide-rule pretty much daily for simple maths - much to the amazement of my pupils.
I loved the Argos kitchen timer, though, I think I might buy one!
Tim