Stationery
Sakura Craft Lab 001 Aluminum Edition Blue Black: A Lightweight Take on a Beloved Pen
The limited Aluminum Edition of the Sakura Craft Lab 001 swaps brass for aluminum, cutting 13 grams while keeping everything that made the original special.
Introduction
The Sakura Craft Lab 001 has quietly become one of the most admired gel pens in stationery circles, and the limited Aluminum Edition Blue Black is the version that sold out fastest when reservations opened. It keeps the design language of the regular model but makes one decisive change: the brass body is replaced with aluminum. The result is a pen that feels like a genuine new purchase rather than a simple color swap of an existing product.
What Makes the Aluminum Edition Different
The regular Craft Lab 001 uses brass generously in its construction. This limited edition swaps that brass for aluminum, exactly as the name promises. The visual design stays essentially the same as the standard model, but the change in material has a big knock-on effect: the pen is dramatically lighter. Where the regular model weighs about 34 grams, the Aluminum Edition comes in at just 21 grams, roughly 13 grams lighter. Anyone who uses the brass version daily will notice immediately.
The material change also affects how the pen ages. Brass owners tend to polish theirs to keep the shine alive; aluminum behaves differently over time and holds its finish well even with heavy use. There is also a subtle metallic scent that differs from brass, a small detail long-term users tend to notice.

Design and Build
The barrel keeps the frosted, glass-like translucent finish of the standard model, and the blue-black colorway pairs beautifully with the brushed aluminum hardware. The clip is a distinctive shape with an elliptical hole in the centre, springy without being stiff, and genuinely easy to slide over fabric or paper. A triangular clip accessory is included in the box, a small extra that many owners end up using daily.
The pen measures 131mm in total length with a maximum diameter of 10.5mm, a size that sits comfortably in the hand. The grip is smooth, and the balance point sits around the middle of the body, which contributes to an easy, controlled writing posture.
Everyday Use and Writing Feel
The Craft Lab 001 uses a rotary mechanism: turning the engraved rear section smoothly extends and retracts the tip, and if you release partway through retraction, it continues retracting on its own. It is a satisfying, well-tuned mechanism that adds to the premium feel.

Combined with the 21-gram weight, long writing sessions are noticeably less tiring than with the brass model. The lightness is the defining characteristic of this edition; whether that is a benefit depends on personal preference, but most users will find it pleasant.
The Ink: Blue Black Done Properly
Sakura developed its black-based gel inks with real dedication, offering six separate formulations sold individually: Black, Blue Black, Brown Black, Gold Black, Green Black, and a deep Jet Black. This edition ships with the Blue Black refill, an original water-based pigment gel ink (refill RLGB-05A) that writes smoothly with minimal resistance and dries to a crisp, opaque finish with a subtle blue undertone. For comparison, the regular green-black model carries a green-tinged ink.

The pigment character gives the ink a solid, grounded look on the page that dye-based inks struggle to match.
Should You Buy It?
There is a lot to like here. The limited edition goes beyond a color change by replacing the entire body material, which genuinely makes it feel like a different pen. The design remains one of the most handsome in its class, the 131mm size is comfortable, the ink is excellent, and the rotary mechanism is a pleasure to use. The main caveat: if you dislike the smell of metal on your hands during use, aluminum may not suit you. That is about the only genuine drawback.

One practical note: this is a limited edition, and the blue-black colorway in particular sold out quickly after reservations opened. If you spot one in stock, it is worth considering seriously rather than waiting. It is a pen that earns long-term daily use, and the aluminum construction holds its look even with heavy handling.
Conclusion
The Sakura Craft Lab 001 Aluminum Edition Blue Black is more than a reissue: the aluminum body cuts 13 grams while preserving the design, mechanism, and ink quality that made the original so well-loved. For anyone who values a light, beautifully made gel pen with characterful pigment ink, it is an easy recommendation, provided you can find one.
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