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The Citizen Tsuyosa 60 Automatic 37 mm NK0030-51E watch catches the eye at first glance with its barrel-shaped case and utterly versatile design. Thanks to its features, it is the ideal companion, especially for casual, everyday wear. This version features an upgrade in the form of the Citizen 8310 movement with an extended power reserve of 60 hours!
The Citizen NK0030-51E features a stainless steel case complemented by an integrated steel bracelet. Inside the case is a Citizen 8310 in-house mechanical movement with automatic winding, which can also be wound manually using the crown. This movement operates at a frequency of 21,600 vibrations per hour, features 21 jewels, and has a date window at the traditional 3 o’clock position. Its readability is enhanced by a magnifying lens on the crystal—the so-called “Cyclops.” A major advantage is the extended power reserve of 60 hours. The operation of this beautifully decorated movement can be observed through the transparent case back.
The textured and highly legible dial is protected by a sapphire crystal, which offers maximum scratch resistance. This watch is water-resistant to 50 meters, so it can easily handle minor contact with water, such as rain or a shower.
The bracelet clasp differs from that of Tsuyosa watches with an off-center seconds hand (models beginning with the letters NK)—therefore, they cannot be interchanged.
We provide a 7-year warranty on Citizen watches.
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| Brand | Citizen |
| Gender | Male, Female, Unisex |
| Style | Casual, Universal |
| Origin | Japanese |
| Guarantee | 7 years |
| Waterproof | 50 m |
| Weight | 122 g |
| Movement | Automatic |
| Caliber | Citizen 8310 |
| Movement accuracy in seconds | -10/+25 sec. / day |
Power Reserve  |
60 hours |
| Case size | 37 mm |
| Case height | 11,5 mm |
| Case shape | Round |
| Case material | Stainless steel |
| Case color | Silver |
| Crystal material | Sapphire |
| Dial | Analog |
| Dial color | Black |
| Transparent Case |
Yes |
| Threaded lid |
Yes |
| Strap material | Stainless steel |
| Buckle |
Butterfly Clasp |
| Strap color | Silver |
| Quick release system |
no |
| Date | Yes |
| Rotating bezel |
No |
| Functions | Date, Transparent back case |
| Battery | No |
| Luminescence |
Hands and indexes |
| Other functions | 21 jewels, Machine frequency 3 Hz (21,600 half-oscillations/hour) |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 8 EUR on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Ladies dress watch Ladies Steel Watches Men's automatic watches Men's dress watches Men's steel watches Women's automatic watches Ladies Japan Watches Men's Japanese watch Men's silver watches Men's watches with date Women's silver watches Men's black watches Men's watches under 400 EUR Women's watches under 400 EUR Men's watches novelties Men’s Watches Citizen Women's watches novelties Elegant Elegant Men's mechanical watches Men’s watches Citizen Elegant Women's mechanical watches Women's watches Citizen Men's universal watches Women's watches with date Men's watches with steel bracelet Women's watches with steel bracelet Men's watches with sapphire crystal Women's watches with sapphire crystal Women's universal watches Citizen
The Citizen Japanese watch dates back to 1918 and over time has become the best-selling watch in the world. They gain their customers with reliability, accuracy, interesting technologies, beautiful design and all at an affordable price. Because he trusts his watch, the Citizen watch has a 7-year warranty.
Of the revolutionary Citizen watch technologies, you are sure to know Eco-Drive, which stands for solar-powered watches. Both artificial and natural light pass through the dial and charge the battery via the solar cell, which drives the watch movement. The reserve charging period is 6 months, and when stored and not carried, it can be up to 7 years in hibernation mode. Other Citizen technologies: radio-controlled watches (Skyhawk AT), voice-controlled watches and much more.
Helveti.eu is an authorized reseller and specialist of the Citizen brand. We provide a 7-year warranty on the watch.
Manufacturer information: Citizen Watch Europe G.m.b.H., Hans-Duncker-Straße 8, D-21035 Hamburg, Germany / shop@citizenwatch.de
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1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here:
