Some divers are built to impress at the bar; the Mido Ocean Star 200 in blue was built to be worn every single day and never asked to come off. It is a straightforward, properly specified Swiss tool watch with 200 meters of water resistance, a sharp blue dial and an automatic movement that can sit in a drawer over a long weekend and still be running on Monday morning.

The engine is Mido’s Caliber 80, the brand’s version of the ETA C07.621, with an 80-hour power reserve and a day-date display at 3 o’clock. The matte blue dial uses stick and dot indexes with Super-LumiNova, and the 12 and 6 o’clock markers are doubled so you can orient yourself instantly underwater. A matching blue unidirectional bezel times your dive, while the case shape shoulders the screw-down crown to keep it out of harm’s way. Mido has been building the Ocean Star since 1944, and the engraved screw-down case back carries that lineage.

At 42.5mm with a 22mm steel bracelet, it has real wrist presence without feeling oversized, and the blue reads navy indoors and electric in sunlight, which makes it as easy to wear with a suit as with board shorts.

Ocean Star 200 Blue, Reference M026.430.11.041.00

• Case: 42.5mm stainless steel, about 11.75mm thick
• Dial: matte blue with luminous stick and dot indexes, day and date
• Movement: Mido Caliber 80 automatic (ETA C07.621 base)
• Power reserve: up to 80 hours
• Bezel: unidirectional rotating diver’s bezel, 60-minute scale
• Crystal: sapphire with anti-reflective coating
• Water resistance: 200m (20 bar) with screw-down crown and case back
• Bracelet: stainless steel, 22mm lug width

A blue diver with a long weekend’s worth of reserve and nothing to prove. It simply works.