Frequently Asked Questions
Most Marine Star watches are quartz, so yes, the majority are battery-powered and need no winding — many use Bulova's High Performance Quartz (Precisionist), which runs accurate to seconds a year with a distinctive smooth-sweeping seconds hand. A smaller selection are mechanical automatics (including skeleton, exhibition-caseback models), and these are driven by Miyota movements — the Japanese calibres from Bulova's sister company within the Citizen Group, prized for reliability and value. Check the individual model: "Quartz/Precisionist" means battery; "Automatic" means self-winding.
This is the collection's strongest argument. For an accessible price you get genuine sports-watch specification — 100–200m water resistance, chronograph functions, luminous markers, and sapphire crystal or Precisionist accuracy on many references — a spec sheet that typically costs considerably more from Swiss sports brands. Backed by Bulova's 150-year American heritage and Citizen Group engineering, the Marine Star delivers a lot of watch per dollar, which is why it's one of Bulova's best-selling lines worldwide.
The collection is built around the sea, with a minimum of 100 metres water resistance and some models rated to 200m. In practical terms, 100m models are well-suited to swimming and snorkelling, while 200m models are appropriate for recreational diving. The key rule: never operate the crown or chronograph pushers underwater, and on screw-down crown models make sure the crown is fully screwed in before contact with water. The most important caveat would be to only use a screw lock crown watch while doing any form of water sports.
On a standard quartz Marine Star, pull the crown to the first click to set the date and to the second click to set the time; chronograph models use the side pushers to start, stop, and reset the stopwatch hands. Quartz batteries typically last several years before replacement, which any watchmaker or Bulova service centre can carry out. Because each reference varies slightly, we include the model-specific instructions with every watch.
The surest guarantee of authenticity is buying from an authorised retailer — every Marine Star sold by Starbuy is brand-new, authorised stock with the full Bulova manufacturer's warranty, unlike grey-market pieces that circulate online without valid cover. Marine Star watches are American-heritage designs from a brand founded in 1875, now part of the Citizen Group, with Japanese Miyota movements in the automatic models and assembled to Citizen Group standards.