Regulation is therefore achieved by using a variable inertia balance wheel, one that has small masses on its perimeter that can be wound in and out to adjust the beat.
Tudor chronograph free#
Where a regulated balance allows beat correction via fine-tuning of the balance spring, a free sprung unit is fixed. Heavier modifications include the complete abandonment of Breitling’s regulated balance for Tudor’s free sprung unit-as is Rolex’s preference-a setup that is harder to adjust, but more stable once it is. The design combines elements from the Black Bay and the Heritage Chrono Like the Heritage Chrono-and unlike almost every other modern chronograph on the planet-the Black Bay Chrono has twin sub-dials rather than the trio supplemented by the B01, and so the hour recorder is ditched, and the 30-minute recorder geared to 45 minutes to compensate. This is solidified by the fact that the movement, despite being hidden under a solid case back, has been extensively modified by Tudor to achieve the right look for the Black Bay Chrono. Of course, a price increase over the Heritage Chrono was expected, and £500 seems pretty reasonable. That Tudor has resisted the temptation-at least for now-to sit the price of the Black Bay Chrono somewhere in-between is a pleasant surprise. The second point to note is that Breitling’s cheapest watch with the B01 movement is a little over £6,000. The first point to note about Tudor’s debut watch with the B01 movement-a calibre it’s calling the MT5813-is that it is £500 more than the ETA 2892-powered Heritage Chrono, at £3,390 on leather and £3,610 on a steel bracelet. It’s that movement that’s the heart of the Black Bay Chrono, and it’s the start of the next chapter in Tudor’s emergence. Tudor and Breitling’s relationship sits somewhere in the middle, and in exchange for Tudor donating its MT5602 to Breitling, Breitling has returned the favour by letting Tudor use its own 70-hour B01 chronograph movement. Tudor Heritage Black Bay Chrono M79350-0001
Some companies went one way, switching to movement manufacturers like Sellita to source Swiss made ETA clones as a straight swap, making the most of the expired patents on ETA’s movements, whilst other brands went another, using the situation to justify spend on development of an in-house movement. The MT5602 is now also available with a Breitling logo on it, buried inside the SuperOcean.Ī little background: with Swatch, the parent company that, ironically, owns movement manufacturer ETA-after almost destroying the mechanical movement in the 1980s entirely-repealing its supply of movements to brands outside of the Swatch group, anyone that used an ETA movement that isn’t a Swatch group brand has been forced to find power elsewhere. Turns out, this arrangement isn’t as clear cut as perhaps initially thought, because while Rolex and Tudor are essentially the same company, Breitling isn’t.īut why am I talking about Breitling? Because it appears that part of the deal for Tudor to build its own movement involved sharing it with Breitling. And so it went: the eye-catching designs and youthful proportions garnered critical acclaim, and Tudor built up enough courage to ask parent brand Rolex for some money to build its own movement, the MT5602.
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