Main Facts: A More Refined, Compact Evolution of an Industry Icon
Citizen has officially written the next chapter for one of modern horology’s most celebrated value propositions. Since its grand debut in 2022, the Citizen Tsuyosa—derived from the Japanese word for "strength"—has enjoyed a meteoric rise, establishing itself as an undisputed heavyweight in the entry-level automatic sports watch segment. Originally introduced as a bold, vibrant, 40mm stainless steel timepiece featuring an integrated bracelet and an unapologetically industrial, raw entry-level movement, the collection quickly captured the hearts of both budget-conscious enthusiasts and casual wearers alike.
Now, Citizen is elevating the formula. Following the successful introduction of the upgraded Tsuyosa 60 in its larger 40mm sizing, the Japanese watchmaker is applying these mechanical and aesthetic enhancements to a much-requested, highly versatile form factor: the Citizen Tsuyosa 60 Automatic 37mm.
Priced accessibly at EUR 379 for the stainless steel variants and EUR 429 for the gold-plated iteration, this new collection brings upscale finishing, an impressive 60-hour power reserve, intricate stamped guilloché-like dials, and a sophisticated multi-link "Jubilee-style" bracelet to a more compact, unisex sizing.

Chronology: From 1990s Archives to Global Phenom
To understand the weight of the Tsuyosa release, one must trace its lineage through time, noting how a clever regional strategy morphed into an international powerhouse.
The 1990s Roots: The NH-299 Series
While many modern enthusiasts viewed the 2022 launch of the Tsuyosa as a reactionary response to the skyrocketing demand for integrated-bracelet luxury sports watches, the design actually carries historical legitimacy. The core architectural DNA traces back to the NH-299 series released by Citizen in the 1990s. This era of watchmaking favored geometric shapes, functional integration, and daily-wear durability—elements that Citizen subtly revived for the modern era.
2022: The European Launch of the NJ015 Series
Conceived initially by Citizen’s European team to capitalize on the market’s insatiable appetite for integrated-bracelet steel sports watches, the original NJ015 series launched at a sub-EUR 300 price point. It was an instant viral success. Boasting saturated, sunburst dials in vibrant hues like Tiffany blue, yellow, and green, it filled a crucial market gap.

However, the watch was far from flawless. Reviewers and purists pointed out distinct compromises: an entirely unfinished, un-coated mechanical movement that warranted a solid caseback rather than an exhibition glass; slightly flat dials; and a lightweight, rudimentary 3-link steel bracelet. Yet, at its price point, these flaws were easily forgiven.
2023–2024: Expansion, Colors, and Refinement
Recognizing the golden goose they had caught, Citizen steadily expanded the catalog. The brand introduced new gradient colorways, salmon dials, regional exclusives (such as the green camouflage editions), and even introduced a sub-second variant (the NK5010) and a more compact 37mm line (the NJ0200 series) to cater to slimmer wrists.
The Tsuyosa 60 Revolution
Realizing that the collection’s ceiling could be pushed higher, Citizen unveiled the Tsuyosa 60 Automatic. By increasing the price point slightly, the brand justified the jump by packing in substantial mechanical and aesthetic upgrades: a textured dial, a refined movement with a doubled power reserve, and a much more luxurious bracelet.

Today: The Tsuyosa 60 Automatic 37mm
Completing the loop, Citizen has now married the high-end upgrades of the Tsuyosa 60 platform with the coveted 37mm sizing, creating what may arguably be the most balanced, wearable iteration of the Tsuyosa to date.
Supporting Data: Specifications and Technical Breakdown
The technical data sheet reveals that Citizen has made deliberate, meaningful upgrades without sacrificing the core utility that made the original Tsuyosa a darling of the enthusiast community.
Case and Dimensions
- Diameter: 37mm
- Thickness: 11.5mm
- Lug-to-Lug: Approximately 43mm
- Material: Stainless steel (brushed and polished finishes), with an optional gold-plated finish available.
- Crystal: Flat sapphire crystal featuring a magnifying cyclops lens over the date window at 3 o’clock.
- Caseback: See-through exhibition crystal.
- Crown: Discreetly tucked and slightly recessed at the 4 o’clock position.
- Water Resistance: 50 meters (adequate for daily wear and accidental splashes, though not intended for deep-water diving).
Dial Architecture
Moving away from the plain sunburst dials of the original NJ015 series, the new 37mm models boast an intricate, stamped guilloché-like geometric pattern. This sophisticated texture catches the light dynamically, drastically elevating the perceived value of the watch. The baton-style hands and hour markers are generously filled with luminous material for low-light visibility.

The collection debuts in three specific references:
- NK0030-51E: Stainless steel case and bracelet paired with a classic, versatile black dial.
- NK0030-51X: Stainless steel case and bracelet paired with a fresh, contemporary light green dial.
- NK0032-56A: Gold-plated case and bracelet paired with a refined silver-coloured dial, accentuated by gold-toned hands and hour markers.
Movement: Calibre 8310
The beating heart of the upgrade lies beneath the exhibition caseback. Replacing the older Calibre 8210 is the in-house Calibre 8310 automatic movement.
- Power Reserve: A massive 60 hours (a 20-hour upgrade over the original 40-hour reserve).
- Frequency: 21,600 vibrations per hour (3Hz).
- Jewels: 21 jewels.
- Accuracy: Rated within -20/+40 seconds per day.
- Complications: Hours, minutes, sweeping seconds with hacking functionality, and a quickset date.
- Finishing: Significantly elevated from its predecessor, the Calibre 8310 features an all-over rhodium plating, traditional stripe decoration on the main bridge, bluer-toned screws, and an openworked oscillating weight (rotor).
The Bracelet
The utilitarian 3-link bracelet of the past has been retired in favor of a much more visually complex multi-link, Jubilee-style steel bracelet. It features brushed outer links contrasting against polished inner links, securing neatly to the wrist via a concealed butterfly folding clasp.

Official Responses and Market Positioning
Citizen’s design and marketing teams have positioned the Tsuyosa lineup not as a fleeting trend-chaser, but as a permanent pillar of affordable mechanical watchmaking.
In official statements surrounding the rollout of the updated Tsuyosa architectures, representatives emphasized that customer feedback regarding the finish quality, power reserve, and tactile experience of the watches directly guided the creation of the Tsuyosa 60 tier. Rather than abandoning the entry-level price point entirely, Citizen has successfully tiered its offerings: the baseline models remain available for those seeking pure, colorful fun on a strict budget, while the Tsuyosa 60 series caters to enthusiasts demanding elevated horological credentials without breaking the four-figure barrier.
Independent horological critics and retail partners have praised this multi-pronged approach. By offering a 37mm variant with a 60-hour power reserve, Citizen has effectively neutralized one of the most common critiques levied against Japanese entry-level automatics—namely, short power reserves that forced weekend wearers to constantly reset their time and date.

Implications: What the Tsuyosa 37mm Means for the Watch Industry
The launch of the Citizen Tsuyosa 60 Automatic 37mm carries broader implications for the contemporary watch market, particularly within the sub-$500 / sub-€500 sector.
1. The Democratization of Luxury Aesthetics
The luxury sports watch category—dominated historically by high-end Swiss icons featuring integrated bracelets, textured dials, and alternating finishes—has long been financially out of reach for average consumers. By translating these high-end design cues into an accessible Japanese package, Citizen has proven that sophisticated aesthetics do not need to command a luxury markup. The addition of the stamped guilloché dial and the Jubilee-style bracelet bridges the gap between everyday tool watch and formal dress piece.
2. The Shift Toward Unisex and Compact Sizing
For years, the industry-wide obsession with oversized sports watches (40mm to 44mm) alienated individuals with slender wrists, as well as a growing demographic of female buyers who prefer mechanical watches with presence. By bringing the high-tier Tsuyosa 60 upgrades down to a modest 37mm case diameter with a compact 43mm lug-to-lug distance, Citizen is acknowledging that comfort and ergonomics are paramount. This move broadens the market appeal exponentially, making the watch a true unisex option.

3. Raising the Bar for Competitors
Entry-level mechanical watchmaking—historically populated by titans like Seiko, Orient, and various microbrands—is fiercely competitive. For a long time, brands could get away with utilitarian movements boasting basic 40-hour power reserves and minimal finishing because consumers had few alternative choices at that price point. With Citizen now offering a 60-hour power reserve, upgraded movement decoration, and sapphire crystals at roughly €379, notice has been served. Competitors will now be forced to elevate their own entry-level specs to keep pace with consumer expectations.
Final Verdict
The Citizen Tsuyosa 60 Automatic 37mm is more than just a size reduction; it is a refinement of a modern classic. By listening to its audience, upgrading the mechanics, and retaining the playful charm that made the original a sensation, Citizen has ensured that the Tsuyosa name will remain a dominant force in accessible watchmaking for years to come.



