Unimatic Modello Uno U1S-T-SE (x Sease)

Made for Sease, the Italian clothing brand, the U1S-T-SE was a 60-piece edition of Unimatic's Modello Uno diver. The run sold out and Unimatic now files it in its archive, so this is a watch to find used. The case is sandblasted titanium, 41.5 mm across, and Unimatic gives its weight as 62 g. It is tested individually to 300 m, with an 8 mm crown and a 2 mm screw-down caseback marked UNIMATIC x SEASE Sailing and numbered. The foliage green dial matches a foliage green aluminium dive insert, with Super-LumiNova C1 on the dial, on a raised dot in the bezel and on the tip of the reverse lollipop seconds, read by phantom ladder hands under a double-domed sapphire. A Sellita SW200-1 runs it at 28,800 vph with 38 hours of reserve and hacking seconds. It came on a foliage green TPU strap with a spare Solaro strap.

Written 10 October 2026 from Unimatic's product page.