The Citizen NJ0170-83Z is a mechanical sports watch built around a vivid canary yellow dial, a unidirectional bezel, and Citizen’s workhorse automatic calibre 8210. It is an easy recommendation if you want Japanese automatic reliability with more colour than a standard black or blue diver-style watch.
Why choose the NJ0170-83Z
Most affordable automatics play it safe with muted dials. This reference leans into a bright yellow face with mixed index and Arabic markers, lume on the hands and indices, and a steel bracelet that keeps the watch ready for daily wear. A uni-directional rotating bezel with a black insert gives dive-style timing cues, while 100 m water resistance covers swimming and active use (not a full 200 m ISO dive tool).
The exhibition case back shows the automatic movement at work—useful if you like the mechanical side of watches and want something more engaging than a sealed quartz sports watch.
Movement and daily use
Citizen calibre 8210 is a 21-jewel automatic beating at 21,600 vph with roughly 42 hours of power reserve (some catalogues list up to about 45 hours). Wear it through the day and it stays wound; if it sits idle over a long weekend, a few wrist hours or gentle motion usually brings it back. Date is displayed at 3 o’clock.
Who it suits
- Colour-forward buyers who want a yellow dial that still reads as a sports watch, not a dress piece
- Automatic newcomers looking for a clear calibre, solid steel build, and approachable sizing at 43 mm
- Active everyday wear — bracelet, 100 m rating, and luminous markers for low light
Technical specifications
- Brand / reference: Citizen NJ0170-83Z
- Collection: Citizen Mechanical / Classic Sport (automatic sports)
- Movement: Citizen automatic calibre 8210, 21 jewels, ~21,600 vph
- Power reserve: approximately 42 hours
- Functions: hours, minutes, seconds, date at 3 o’clock
- Case: stainless steel, 43 mm diameter, about 12.4 mm thick
- Weight: approximately 182 g (with bracelet)
- Crystal: mineral crystal
- Case back: exhibition (see-through)
- Bezel: unidirectional rotating stainless bezel with black insert ring
- Dial: canary yellow; luminous hands and markers; index and Arabic hour markers
- Bracelet: stainless steel with push-button clasp
- Water resistance: 100 metres / 10 bar (swimming and snorkelling when in good condition)
Sizing note
At 43 mm and roughly 12.4 mm thick, the NJ0170-83Z is a full-size men’s sports watch. It should feel familiar if you already wear mid-to-large divers; very small wrists may prefer a sub-40 mm dress automatic instead.
Care tips
Rinse after salt or chlorinated water, keep the crown pushed in, and avoid operating the crown underwater. Automatic movements benefit from regular wear or a gentle wind cycle after long storage. Mineral crystal resists daily scratches better than acrylic but is not sapphire—treat sharp impacts with care.
Frequently asked questions
What movement is inside the Citizen NJ0170-83Z?
It uses Citizen automatic calibre 8210: 21 jewels, three hands plus date, and about 42 hours of power reserve. No battery is required.
What is the water resistance of the NJ0170-83Z?
100 metres (10 bar). Suitable for swimming and snorkelling when seals are sound. It is not marketed as a 200 m professional dive watch.
Is the dial really yellow?
Yes. Official Citizen listings describe a canary yellow dial. Lighting and screen calibration can shift how saturated it looks in photos; expect a bright yellow sports dial in person.
Does the NJ0170-83Z have a see-through case back?
Yes. The transparent case back lets you view the automatic movement—part of the appeal versus sealed quartz sports watches.
Is the NJ0170-83Z good as an everyday watch in Australia?
For someone who wants colour and a mechanical movement at a practical size, yes. Steel bracelet, 100 m rating, and lume cover commuting, weekends, and travel. Pair it with a rubber strap later if you prefer a lighter summer setup.
Where can I buy the Citizen NJ0170-83Z in Australia?
This reference is available from Chronospride with Australian dispatch while stock lasts. Authentic stock, inspected before dispatch. Free shipping Australia-wide on eligible orders. Covered by Chronospride’s 12 months warranty, handled by our team. See our authenticity and warranty page.
Authentic stock, inspected before dispatch. Free shipping Australia-wide on eligible orders. Covered by Chronospride’s 12 months warranty, handled by our team. See our authenticity and warranty page.
| Brand | Citizen |
|---|---|
| Lug-Width | 22mm |
| Lug to lug size | 50mm |
| Case Thickness | 12.4mm |
| MPN | NJ0170-83Z |
| Gender | Men's |
| Band-Material | Stainless Steel |
| Case-Material | Stainless Steel |
| Movement | Automatic |
| Case-Size | 43mm |
| Band-Width | 22mm |
| Band-Colour | Silver |
| Case-Colour | Silver |
| Calibre | 8210 |
| Water-Resistance-Rating | 100M |
| Face-Colour | yellow |
| UPC | 4974374312099 |
| EAN | 4974374312099 |
| Watch-Shape | Round |