Citizen Zenshin Series Small Seconds
Citizen Zenshin Super Titanium Watches With Small Seconds — The NK5020 Series
In recent years, Citizen has been riding a remarkable wave of renewed popularity—largely thanks to the runaway success of the Tsuyosa collection. Its playful colours, integrated-bracelet 1980s styling, and unbeatable value quickly made it one of the coolest entry‑level mechanical watches on the market.
Building on that momentum, Citizen released the NJ0180 Series in 2024, a titanium reinterpretation often casually referred to as the “Titanium Tsuyosa.” But as the community soon discovered, it deserved a name of its own: Zenshin.
Fast‑forward to today, and the line evolves once again with the debut of the Citizen Zenshin NK5020 Series—a set of four Super Titanium small‑seconds automatic watches that bring new colours, sharper design details, and an upgraded movement.
Below, we dive deep into what makes these watches compelling—especially for enthusiasts seeking a lightweight, durable, modern titanium sports watch without the premium price tag.

What “Zenshin” Means — And Why It Matters
“Zenshin” (前進) translates to advancement, improvement, or progress in Japanese—a fitting name given Citizen’s pioneering role in titanium watchmaking.
A quick timeline:
- 1970 – Citizen introduces the world’s first titanium watch: the X‑8 Chronometer.
- 1964–Present – Continuous material science R&D through Citizen’s titanium research centre.
- 1990 – Launch of Super Titanium, offering extreme lightness and corrosion resistance.
- 2006 – Introduction of Duratect, a surface-hardening treatment around 5× harder than stainless steel.
The result? Watches that are:
- Ultra‑light
- Hypoallergenic
- Scratch‑resistant
- More durable than standard steel
- More affordable than competing titanium models
The new Zenshin series fully embraces this philosophy of continuous improvement.
Citizen Zenshin NK5020 Series
Citizen expands the Zenshin family with four new references, all featuring a small seconds complication and finished entirely in Super Titanium with Duratect finishing.
Key Specs Overview
- Case diameter: 40.5mm
- Thickness: 11.25mm
- Material: Super Titanium + Duratect
- Crystal: Sapphire Crystal
- Caseback: Exhibition
- Water resistance: 100m
- Bracelet: Integrated single‑row Super Titanium
- Movement: Citizen Calibre 8322
- Power reserve: 60 hours
- Frequency: 3 Hz
- Functions: Hours, minutes, small seconds, stop‑seconds

Design Evolution: Familiar Form, Sharper Personality
The NK5020 models maintain the familiar faceted barrel-shaped case of last year’s NJ0180 releases—complete with brushed planes, polished accents, and a sporty‑chic silhouette.
What’s New?
1. A Bolder 12‑Sided Bezel
A completely new dodecagonal bezel adds geometric tension and a more contemporary character. It’s a subtle yet effective upgrade that distances the Zenshin further from Tsuyosa influences.
2. Classic 3 O’Clock Crown
Unlike the Tsuyosa’s off‑centre placement, the Zenshin uses a traditionally positioned crown—appealing to those who prefer a more conventional layout.
3. Integrated Titanium Bracelet
A single‑row bracelet flows cleanly into the case, enhancing the integrated-sports‑watch vibe while maintaining the featherweight feel titanium enthusiasts and collectors love.
A Major Upgrade Inside: The Calibre 8322
The NK5020 models share their movement engine with Citizen’s Tsuyosa Small Seconds lineup: the in‑house calibre 8322.
Movement Highlights
- 60‑hour power reserve — a noticeable improvement over prior generations
- 3 Hz beat rate
- Small seconds subdial
- Hacking seconds for precise time setting
Citizen’s commitment to accessible mechanical watchmaking is on full display here—reliability, practicality, and modern specs at an impressive price point.
Dial Variants — Four Colours, Four Personalities
The Citizen Zenshin NK5020 Series launches with four references, each with a distinct personality:
| Reference | Colour |
|---|---|
| NK5020‑58L | Light Blue |
| NK5020‑58M | Dark Blue |
| NK5020‑58P | Copper |
| NK5020‑58X | Green |
Each dial pairs beautifully with the clean titanium aesthetic, offering options for subtle, bold, or standout wrist presence.
Why the Citizen Zenshin NK5020 Series Matters
For collectors and newcomers alike, the Citizen Zenshin NK5020 Super Titanium Small Seconds watches are a compelling proposition:
- They offer premium titanium at accessible prices.
- They deliver Citizen’s signature blend of durability, lightness, and comfort.
- They introduce a modern, refined aesthetic with a distinctive 12‑sided bezel.
- They pack an upgraded 60‑hour automatic movement.
- They come in four appealing dial colours, making them easy to personalize.
If you’re searching for an everyday sports watch that’s lightweight, scratch-resistant, modern, and mechanically satisfying, the new Zenshin NK5020 Series stands out as one of the strongest value propositions on the market in 2026 and beyond.
Click HERE to see the full Citizen ZENSHIN family of Watches.



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