Christophe M. 07/06/2026
| Reference Ocarat | #122891 |
| Reference | NK0020-55E |
| Brand | Citizen |
| Product Type | Watch |
| Gender | Men |
| Color | Black Gray |
| Material | Steel |
| Material Quality | 316L stainless steel |
| Warranty | 2 Years |
| Thickness (in mm) | 11,70 |
| Diameter (in mm) | 40,00 |
| Manufacturing | Japan |
| Warranty Type | International |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Barrel chain |
| Dial Finish | Geometric Patterns |
| Watch Case Back | Exhibition Case Back Screwed caseback |
| Crystal Shape | Flat |
| Glass Quality | Sapphire Crystal |
| Watch Case Types | Date |
| Buttons | 1 Crown |
| Water Resistance (in ATM) | 5 |
| Movements | Automatic (rotor) |
| Movement Type | Japanese Movement |
| Movement Brand | Citizen |
| Calendar and Time | Dates Hours Minutes Seconds |
| Power Reserve (Maximum Duration) | 60 hours |
| Display Type | Analog (hands) |
| Display Specifications | Luminescent hands and indexes SuperLuminova |
| Bracelet Material | 316L Stainless Steel |
| Strap Color | Gray |
| Watch Clasp | Deployment Clasp |
| Lug Width (in mm) | Special - Custom Made |
The Japanese Citizen Tsuyosa 60 Deep Black watch stands out with its modern look and refined design. Its barrel-shaped case, crafted in 316L stainless steel, delivers both durability and elegance. The 40 mm diameter sits comfortably on the wrist, while the 11.70 mm thickness gives it a solid presence without overwhelming the silhouette. The flat sapphire crystal, scratch-resistant and highly durable, protects the dial and ensures perfect visibility in any condition.
The black dial commands attention with its geometric patterns, subtly reflecting light for a mesmerizing visual effect. The display is analog, blending tradition and modernity, with legibility enhanced by SuperLuminova-treated hands and luminescent indices. A date window thoughtfully positioned at 3 o'clock rounds out the dial's practical functions, letting you track the days at a glance.
At the heart of this watch beats a Japanese automatic movement with a 60-hour power reserve, embodying Citizen's watchmaking expertise. This timepiece blends performance and reliability, delivering precise tracking of hours, minutes, and seconds, along with a date display. The automatic caliber features a visible rotor through the transparent caseback, lending the watch a dynamic, living quality that draws you into the captivating world of fine watchmaking.
The strap on this watch is crafted in 316L stainless steel, reflecting the same quality and resilience as the case. Its grey tone pairs seamlessly with the watch's overall design. A deployment clasp ensures security and ease of use while enhancing the model's elegance.
With water resistance rated at 5 ATM, this watch handles everyday splashes with ease. It can be worn through activities like showering or surface swimming without worry. It is not designed for scuba diving.



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Customer reviews
Christophe M. 07/06/2026
David G. 09/11/2025
Tsuyosa 60 Deep Black Watch NK0020-55E
(Ref. 122891)