CITIZEN NJ0231-56L TSUYOSA SHORE MECHANICAL MEN WATCH

The Citizen NJ0231-56L Tsuyosa Shore is the lighter, more coastal sibling in the Shore lineup. Where the NJ0230-59L goes deep navy, the 56L uses a marine blue sunray dial — brighter, more luminous, and more immediately summer. The colour-matched blue bezel insert and all-steel case keep the look clean and cohesive, and the sunray finish shifts the dial between vivid sky blue and a slightly deeper tone depending on the light. If the navy Shore is a blazer-and-denim watch, this one is a linen-shirt-and-loafers watch.

Underneath the colour, it's the same upgraded Shore platform: Calibre 8210 automatic movement with hacking function, 120-click unidirectional rotating bezel, sapphire crystal with date magnifier, exhibition caseback, and 100-metre water resistance. At 40mm with a 12.5mm profile and 149 grams on the integrated stainless steel bracelet, it wears identically to the rest of the Tsuyosa Shore family — mid-size, comfortable, and easy to forget you're wearing until someone asks about it.

At a Glance

Why You'll Love It

• Marine blue is the lightest, most vibrant blue in the Tsuyosa Shore range — it reads as deliberately coastal and summer-forward, not corporate-navy. The sunray finish keeps it from looking flat by shifting tone with the light.
• Same sport-capable Shore platform as the darker navy 59L — 100m water resistance, rotating bezel, sapphire crystal, hacking automatic movement — so you get genuine swim-ready functionality, not just beach-watch aesthetics.
• The integrated bracelet creates a seamless case-to-wrist silhouette that makes the 40mm case look and feel sleeker than a standard lug-and-spring-bar design. No gaps, no visual breaks.
• Exhibition caseback lets you watch the Calibre 8210 rotor and movement in action — a detail that adds perceived value well above the price point.
• Sapphire crystal with anti-reflective coating and a date magnifier at 3 o'clock — the most scratch-resistant watch glass available, readable at a glance.
• Hacking seconds function means you can set the time to the exact second — pull the crown and the seconds hand stops. A precision feature that cheaper automatics often skip.

Perfect For

Key Features

• Citizen Calibre 8210 automatic movement — 21-jewel self-winding mechanical movement with approximately 40 hours of power reserve, hacking seconds function for precise time setting, and 21,600 vibrations per hour. No battery required.
• 120-click unidirectional rotating bezel — marine blue aluminium insert colour-matched to the dial, with 120 precise click stops for elapsed-time tracking. Unidirectional rotation prevents accidental over-counting.
• Sapphire crystal with date magnifier — anti-reflective sapphire rated 9 on the Mohs hardness scale with a magnifying lens over the 3 o'clock date window for easy reading.
• 100-metre water resistance (10 BAR) — rated for swimming, snorkelling, and recreational water sports. Not rated for scuba diving.
• Integrated stainless steel bracelet — seamless 3-link case-to-bracelet design with a fold-over clasp and hidden push-button release for a clean, secure fit.
• Exhibition caseback — transparent glass caseback displays the automatic movement and oscillating rotor in action.
• Luminous sword hands and lollipop seconds hand — wide sword-style hour and minute hands with luminous fill, plus a lollipop seconds hand for strong readability in low-light conditions.

Technical Specifications

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Frequently Asked Questions

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