Frequently Asked Questions
Bulova automatics are powered by Miyota movements — the Japanese mechanical calibres made by Miyota, which, like Bulova, is owned by the Citizen Group. That shared ownership matters: it means Bulova draws on one of the world's largest and most proven movement makers rather than an anonymous third party. Miyota's automatic calibres (the 8 and 9 series) are among the most widely used self-winding movements in the industry, trusted for reliability and easy serviceability worldwide.
The jewels are synthetic rubies set at the movement's key friction points to reduce wear and keep timekeeping stable over decades. Twenty-one jewels is the hallmark of a properly built mechanical automatic — it's the configuration of the Miyota 8-series movement, not a marketing number. It signals a genuine self-winding mechanical watch engineered to last, which is a large part of why this collection offers the finishing and feel of far more expensive pieces at an accessible price.
Yes — this collection is arguably Bulova's strongest value proposition. Because the movements come from sister-company Miyota, Bulova delivers a reliable Japanese mechanical engine in a well-finished case for a fraction of what a comparable Swiss automatic costs. Expect accuracy within the normal range for mechanical watches (a small number of seconds per day, which self-corrects as you wear it) and the tangible appeal of a sweeping seconds hand and a movement that runs on your motion alone — no battery, ever.
A fully wound Bulova automatic holds roughly 40 hours of power reserve, so worn daily it never stops. If it's been sitting unworn for a couple of days, wind the crown 20–30 turns (or simply give it a gentle shake) to restart it, then set the time. You can't over-wind it — the movement has a built-in clutch that prevents damage once fully wound, so it's genuinely low-maintenance for a mechanical watch.
Not every Bulova is automatic — much of the wider range is quartz — so the Automatic collection is the line to choose if you specifically want a self-winding mechanical movement (look for "Automatic" and the 21-jewel designation). These are American-heritage designs from a brand founded in 1875, now part of the Citizen Group, fitted with Japanese Miyota movements and assembled to Citizen Group standards. Every automatic sold by Starbuy is brand-new, authorised stock with full manufacturer's warranty.