Specifications
- Reference
- NK5010-51L
- Family
- Tsuyosa
- Category
- Classic
- Status
- Current
- Case material
- Stainless steel
- Case diameter
- 40 mm
- Case thickness
- 12 mm Official
- Lug-to-lug
- —
- Lug width
- 13 mm Official
- Water resistance
- 50 m
- Bezel
- —
- Calibre
- 8322 Official
- Power reserve
- 60 h
Official product page · retrieved October 16, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
No lug-to-lug figure exists for this reference yet, so fit cannot be computed.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 12 mm | Official | Citizen | October 16, 2026 |
Lug-to-lug
No source gave this figure yet.
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
| Value | Type | Source | Date |
|---|---|---|---|
| 13 mm | Official | Citizen | October 16, 2026 |
Calibre source
Official Citizen · retrieved October 16, 2026
Other versions in the same case
These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.
Other Tsuyosa references
Other Citizen models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Series 8 831 NB6059-57P | 40 mm | 10.71 mm | — | 9051 |
| Corso BM7251 BM7251-53L | 41 mm | 9.8 mm | — | E111 |
| Series 8 NB6080 NB6080-51W | 39 mm | 10 mm | — | 9051 |
| Zenshin NJ0180 NJ0180-80L | 40.5 mm | 11.46 mm | — | 8213 |
| Series 8 890 NB6060-07A | 42.6 mm | 11.6–12.07 mm⚠ | — | 9051 |
| Chandler BM8180 BM8180-03E | 37 mm | 8.95 mm | — | E101 |
Show 18 more
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Promaster Land JV1008 JV1008-63E | 43.9 mm | 14.25 mm | — | U822 |
| Series 8 880 GMT NB6030-59L | 41 mm | 13.4–13.6 mm | — | 9054 |
| Promaster Fujitsubo NB6021 NB6021-17E | 41 mm | 12.3 mm | — | 9051 |
| Promaster Fujitsubo NB6026 NB6026-56L | 41 mm | 12.2 mm | — | 9051 |
| Promaster Altichron BN4065 BN4065-07L | 47 mm | 14.7 mm | — | J280 |
| Promaster Diver BN0150 BN0150-28E | 44 mm | 11.54 mm | — | E168 |
| Promaster Air GMT NB6046 NB6046-59E | 44.5 mm | 13 mm | — | 9054 |
| Promaster Tsuno Chrono Racer AV0104 AV0104-06W | 44.5 mm | 15.25 mm | — | E210 |
| Promaster Diver BN0200 BN0200-56E | 44 mm | 11.92 mm | — | E168 |
| Promaster Diver BN0191 BN0191-55L | 45 mm | 12 mm | — | E168 |
| Promaster Skyhawk A-T JY8078 JY8078-52L | 45 mm | 14.45 mm | — | U680 |
| Promaster Skyhawk A-T JY8146 JY8146-54E | 45.7 mm | 14 mm | — | U680 |
| Promaster Skyhawk A-T JY8108 JY8108-53E | 45 mm | 14.3 mm | — | U680 |
| Promaster Dive BN1024 BN1024-01Z | 46 mm | 16.3 mm | — | E365 |
| Promaster Skyhawk A-T JY8148 JY8148-08L | 46 mm | 14 mm | — | U680 |
| Promaster Dive Automatic NB6005 NB6005-05L | 46 mm | 15.3 mm | — | 9051 |
| Promaster Dive BN0225 BN0225-04L | 47 mm | 14.3 mm | — | E168 |
| Satellite Wave GPS Diver 200M CC5006 CC5006-06L | 47 mm | 16 mm | — | F158 |