CITIZEN NJ0234-58X TSUYOSA SHORE MECHANICAL MEN WATCH
NJ0234-58X
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The Citizen NJ0234-58X Tsuyosa Shore is the playful, extroverted piece in the Shore family — a vivid coral red sunray dial against a two-tone case with partial gold-tone plating over a silver-tone base. A matching red 120-click unidirectional rotating bezel and gold-tone hands and hour markers make it one of the rarest colours in the whole Tsuyosa line.
Inside is Citizen's Calibre 8210 automatic movement with a hacking seconds mechanism — pull the crown and the seconds hand stops, letting you set the time to the second. A transparent exhibition caseback shows the movement in motion, and a sapphire crystal with a magnified date window at 3 o'clock keeps things practical. Illuminated hands and indexes keep it legible in low light.
The 40mm two-tone stainless steel case runs 12.5mm thick with an integrated two-tone bracelet, closing on a fold-over clasp with a safety release. Water resistant to 100 metres, it's built for the beach as much as the boardroom.
At a Glance
- BrandCitizen
- CollectionTsuyosa Shore
- MovementCalibre 8210 Automatic, Hacking
- Case Size40mm
- Thickness12.5mm
- Weight149g
- DialCoral Red Sunray
- Bezel120-Click Unidirectional, Red
- Case & BraceletTwo-Tone Steel
- GlassSapphire, Magnified Date
- CasebackExhibition, Transparent
- Power ReserveApprox. 40 Hours
Why You'll Love It
- Coral red is one of the rarest dial colours in the entire Tsuyosa line — a genuinely bold, playful choice that stands apart from the family's other three colourways.
- The two-tone case gives this a distinct look from the fully gold-toned sibling — a subtler, more versatile gold accent over a silver-tone base rather than an all-gold statement.
- A genuine 120-click unidirectional rotating bezel is real dive-adjacent functionality, not a decorative ring — a meaningful upgrade over the fixed bezels on Citizen's standard Tsuyosa pieces.
- The hacking seconds mechanism lets you set the time to the exact second by stopping the seconds hand when the crown is pulled out — a mechanical detail usually found on watches well above this price.
- 100m water resistance means this genuinely handles swimming and everyday water exposure, not just splashes — a real step up from the standard 50m Tsuyosa mechanical pieces.
- A transparent exhibition caseback lets you watch the automatic movement in action — a feature more often found on watches well above this price point.
- A magnified date window keeps the date genuinely readable at a glance, not squeezed into a tiny window.
- No battery, ever. The movement runs on the motion of daily wear, so there's nothing to replace.
Perfect For
- Mechanical Watch Enthusiasts
- Statement Watch Wearers
- Rare Dial Colour Collectors
- Sport-Luxury Style
- Active & Outdoor Lifestyle
- Two-Tone Watch Fans
- Gift for Him
Key Features
- Coral red sunray dial — one of the rarest colours in the Tsuyosa line, with gold-tone hands and index hour markers.
- Two-tone case and bracelet — partial gold-tone plating over a silver-tone base, distinct from the family's full gold-tone sibling.
- 120-click unidirectional rotating bezel — genuine dive-adjacent functionality, matching red.
- Hacking seconds mechanism — stops the seconds hand when the crown is pulled, for precise time-setting.
- Citizen Calibre 8210 automatic movement — 21-jewel self-winding mechanical movement running at 21,600 vibrations per hour with approximately 40 hours of power reserve. No battery required.
- Sapphire crystal with magnified date window — at 3 o'clock, for genuine at-a-glance readability.
- Illuminated hands and indexes — for legibility in low light.
- Transparent exhibition caseback — showing the movement in motion.
- 40mm two-tone stainless steel case — 12.5mm thick, weighing 149 grams.
- Integrated two-tone bracelet — fold-over clasp with safety release.
- 100-metre water resistance (10 BAR) — rated for swimming and everyday water exposure.
Technical Specifications
The Citizen NJ0234-58X Tsuyosa Shore is a 40mm men's automatic watch powered by Calibre 8210, a 21-jewel hacking movement running at 21,600 vph with approximately 40 hours of power reserve and a daily accuracy of +40/-20 seconds. The two-tone stainless steel case measures 12.5mm thick with sapphire crystal and a magnified date window, a 120-click unidirectional red bezel, and a transparent exhibition caseback, and is water resistant to 100 metres. The coral red sunray dial carries gold-tone illuminated hands and index hour markers. It weighs 149 grams on an integrated two-tone bracelet with a fold-over clasp and safety release.
| Model Number | NJ0234-58X |
| Case Material | Two-Tone Stainless Steel |
| Case Diameter | 40mm |
| Case Thickness | 12.5mm |
| Weight | 149g |
| Bezel | 120-Click Unidirectional, Red |
| Glass | Sapphire Crystal, Magnified Date Window |
| Caseback | Exhibition, Transparent |
| Water Resistance | 100 Metres (10 BAR) |
| Colour | Coral Red, Sunray |
| Hands & Markers | Gold-Tone, Illuminated |
| Display | Hours, Minutes, Seconds, Date (3 O'Clock) |
| Material | Two-Tone Stainless Steel, Integrated |
| Clasp | Fold-Over, Safety Release |
| Calibre | Citizen 8210 |
| Type | Automatic (Self-Winding), Hacking Seconds |
| Jewels | 21 |
| Frequency | 21,600 vph (6 beats/sec) |
| Accuracy | +40/-20 Seconds/Day |
| Power Reserve | Approx. 40 Hours |
Best Matched With
- Linen Shirt
- White Chinos
- Deck Shoes
- Weekend Casual
- Cream Blazer
- Statement Piece Styling
Frequently Asked Questions
Is this the same as the full gold Tsuyosa Shore?
No. This is the two-tone model — partial gold-tone plating over a silver-tone stainless steel base, giving a subtler gold accent. The full gold-tone Shore piece (NJ0232-53X) uses gold-tone plating throughout the case and bracelet.
What does the rotating bezel do?
The 120-click unidirectional bezel can be used to track elapsed time — line up the marker with the minute hand and read off how much time has passed as the bezel rotates. It only turns one way, a safety feature borrowed from dive watch design that prevents accidentally reading less elapsed time than has actually passed.
What is a hacking seconds mechanism?
Pulling the crown out to the time-setting position stops the seconds hand completely, letting you set the time to the exact second — for example, syncing against a phone or radio time signal. Many automatic watches let the seconds hand keep running while you set the time; this one stops it, for precision.
Can I see the movement?
Yes. The caseback is a transparent exhibition window, so the automatic movement is visible from the back of the watch while it's running.
What does "automatic" mean?
An automatic watch is powered by the natural movement of your wrist. A rotor inside the case winds the mainspring as you wear it, so no battery is needed. If left unworn for a while it will stop and need resetting — simply wear it again to restart it.
How long does the power reserve last?
Approximately 40 hours when fully wound, so the watch keeps running for close to two days after you take it off. Regular daily wear keeps it continuously wound.
Can I swim with this watch?
Yes. At 100 metres (10 BAR) water resistance, this comfortably covers swimming and everyday water exposure. It's not designed as a dedicated dive watch, so it isn't rated for scuba diving.
Does a mechanical watch need servicing?
Yes. Unlike a quartz watch, an automatic has moving parts and lubricants that wear over time. Citizen recommends periodic servicing to keep timekeeping and water resistance within spec. Any City Chain outlet can arrange this — bring your warranty card.
Will 40mm fit my wrist?
40mm sits in the middle of the modern men's range and suits most wrist sizes from roughly 15cm to 19cm.
Is the bracelet adjustable?
Yes. The bracelet can be resized by adding or removing links. City Chain offers complimentary bracelet sizing at any outlet — bring your warranty book along for the service.
What warranty does this watch come with?
The NJ0234-58X comes with a 3-year warranty when purchased from City Chain Singapore, an authorised Citizen retailer. Keep your warranty card and proof of purchase — both are required when submitting the watch for service at any City Chain outlet.
Why Buy from City Chain Singapore
- Authorised Retailer 100% genuine Citizen product
- 3-Year Warranty Covered on every purchase
- Free Shipping All orders within Singapore
- Bracelet Adjustment Size it in-store
Caliber No.: 8210
Movement: Mechanical
Strap: Stainless Steel
Thickness: 12.5mm
Case Size: 40mm
Case: Stainless Steel
Glass: Sapphire Glass
Specification
21 jewels
Date Display
Frequency : 21,600 vph
Running time of approx. 40 hours (when fully wound)
Gender: Gent
Water Resistant: 100m
Weight: 149g
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Delivery within Singapore
Order by 11AM
(Mon - Fri for faster processing)
Checkout options may vary depending on order value and eligibility.
• Free Speedpost Domestic Delivery — 1–2 business days
• Free DHL Domestic Delivery — next business day
• Express Delivery — S$30, order by 2PM
• Click & Collect — ready in 2–3 business days. Please wait for the collection confirmation email before visiting the store.
Weekend & Public Holiday Orders
Orders placed after the applicable cut-off time, on weekends, or on public holidays will be processed on the next business day. Delivery will take place on the next available business day based on the selected delivery service.
During peak periods, festive seasons, major launches or sale events, additional processing and delivery time may be required.
