Omega’s iconic Seamaster dive watch has come in many guises over the years.

From the vintage, military-issued Seamaster 300 to the ungainly Ploprof, it’s a collection that has more than stood the test of time. Here we have a Seamaster, however, that we doubt you’ve ever seen before.

Called the Memomatic, it’s a charming alarm watch from a time long before the smartphone’s incessant buzzing and beeping would take over our lives. The Memomatic line was notable for offering minute-by-minute alarm setting, which was a feature unavailable on contemporary alarm watches such as the Jaeger-LeCoultre Memovox and the Vulcain Cricket. Its movement also powered both the timekeeping and alarm functions from a single barrel — an usual feature, to be sure.

Dating to the 1970s, this particular Memomatic is housed in a 44mm stainless steel barrel case with an acrylic crystal, a signed crown at 4:00, an alarm-setting pusher at 2:00, and a recessed pusher at 3:00 for date adjustment. It features a sunburst blue outer dial with applied indices, dual silver rotating center alarm indicator, a Tritium handset, a date window at 3:00.

Powering the watch is the Omega Calibre 980, an automatic, alarm-equipped movement based on an ebauche from Lemania. Finishing the package is a handsome, blue Cordura® strap with a steel pin buckle.

Whether you’re looking to decouple from your phone and go analog — or you simply love cool old watches — this Seamaster Memomatic couldn’t be a better option.