Citizen Tsuyosa Automatic NJ0150-81X

Imagen: Citizen, web oficial

The storyWhy this reference matters

Citizen launched the Tsuyosa in 2022 and explains the name itself, without mystery: tsuyosa is Japanese for strength. The interest was never in the word but in the formula. Steel case with an integrated bracelet, sapphire, an automatic on show through the back, and a range of dials in yellow, blue, black, red and green that looked chosen for Instagram before the shop window. It became a bestseller by accumulation, one wrist shot at a time, with no advertising campaign behind it.

The Datejust comparison made itself, and it's worth getting right. The Tsuyosa shares three traits with the Geneva classic: baton hands, a magnifier over the date window and a bracelet silhouette that flows out of the case. That's where the resemblance stops. Neither the construction nor the finishing nor the calibre plays in that league, and anyone buying it as a stand-in has picked the wrong reason. The Tsuyosa works because it's consistent with itself, not because it reminds you of something else.

What came next is the interesting part. Citizen listened and the collection grew in the direction people were pushing: a 37 mm version turned up for wrists that don't get to 40, and newer calibres arrived with more running time, the sixty-hour 8322 among them. The Tsuyosa stopped being a single model and became a family with several cases and several engines. Buying one today means looking hard at which one you're actually being sold.

SpecificationsThe numbers, in one table

IdentificationHow to tell it apart

A steel case of 40 mm by 11.7 mm thick, with around 45 mm lug to lug, which is why it wears far better than the headline number suggests. The bracelet starts at 22 mm and tapers to 18 at the clasp. Sapphire crystal, a screwed display case back, 5 bar of water resistance and roughly 138 grams in the hand. The -81X is the green dial.

Inside sits the 8210: automatic, 21 jewels, 21,600 vibrations per hour and a declared 40 hours of reserve, with the same generous factory tolerance as the rest of the family, minus 20 to plus 40 seconds a day. The date sits at three under a magnifier, and that magnifier splits people into two irreconcilable camps within the first minute.

If you're reading used listings, check the case and the calibre before anything else. There are Tsuyosas at 40 mm and at 37, and newer versions with a different calibre and sixty hours of running. A seller advertising a plain 'Tsuyosa' could have any of them, and the difference in running time between one and another is close to a full day.

CollectingWhat collectors check

The most useful detail when buying used is also the most overlooked: hacking. Later 8210s have it, the earliest ones don't. Five seconds with the crown pulled out and your eye on the seconds hand settles it. It won't change the price, but it changes what setting the watch accurately feels like, and it gives you a rough read on how old the example is.

The integrated bracelet comes with one advantage and one obligation. The advantage is the unbroken line out of the case. The obligation is that you can't fit any strap you fancy: if it arrives short with no spare links, that's your problem now. Always ask about the removed links before you close the deal, because sourcing them separately later is far more awkward than it sounds.

On condition, look at the polished centre links. They collect the most marks and tell you at a glance whether the watch has lived on a wrist or in a box. The sapphire, by contrast, is usually spotless, and that's the Tsuyosa's biggest advantage over other automatics in its bracket: a crystal that doesn't scratch ages far better than a battered mineral one.

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