Leather: Steel Gray Weeks Hardcover Book / Weekly Horizontal / ENG or JPN edition / Jan start / Mon start - Techo Lineup

LeatherSteel GrayWeeks Hardcover Book / Weekly Horizontal / ENG or JPN edition / Jan start / Mon start

2025 New

This leather Weeks book features durable and comfortable cow leather for the attached cover. The shiny satin bookmark ribbons and headband on the book spine establish a slightly more elaborate construction than usual.

Steel Gray uses leather dyed in a steel-like dark gray. The color is chic yet tender and works well for any occasion. The year 2025 is foil-pressed in silver and sparkles when it catches the light.

The top and bottom of the book spine contain headbands to reinforce the binding and decoration. We chose gray headbands for this design.

The bookmarks are made of charcoal gray and dark brown satin ribbons with a nice sheen for a sophisticated color scheme.

The leather Weeks book comes in a specially-designed envelope to prevent sun damage.

When you order this Hobonichi Techo Weeks, you’ll receive a clear, adhesive corner pocket you can stick anywhere you like.

The book uses thin and light yet durable Tomoe River paper. This paper that underwent an overhaul with the 2024 edition techo is more resistant to bleed through, lighter despite being the same thickness, and has a smoother surface by adjusting the fibers of the paper.

The Weeks book has space for writing in plans or journal entries, and it also has 69 pages of grid paper memo pages in the back (73 pages in the English edition). The back of the book contains bonus pages, including Sample Symbols and Icons and Oodles of Noodles.

The Hobonichi Techo 2025 Weeks book comes in either English or Japanese. If you love this cover, then you can pick out which language you’d like in that book.

*The English edition book only comes as the January-start version.

If you’d like storage space or a way to change up the look of your Weeks book, you can customize your book by pairing it with a Weeks cover.

See Weeks cover lineup

The Hobonichi Techo leather covers are made with all-natural materials that have their own unique appearance. Every leather cover is a one-of-a-kind, all-natural product, so you can feel good knowing your cover is the only one like it in the world. Here are some of the unique characteristics you can expect to find.

- Markings that naturally occur during an animal’s life:

Wrinkles, veins, texture, and scratches

- Characteristics from the manufacturing process of natural leather:

Dark spots (occurs when components of the leather are exposed to iron in the air during the tanning and dyeing process)

A classical leather-covered techo with a playful touch

Leather is a Weeks book series with a cowhide leather cover. It features luxurious colors and a comfortable touch that only leather products can provide.

The 2025 edition comes in two colors: Pomegranate and Steel Gray. Not only are red and gray standard colors for planners, but we also selected the leathers in shades to make them suitable for various purposes.

Among the variety of Weeks books, the shiny satin ribbon and headband are unique to this series. We hope you will feel the charm of the playful addition to the classical leather techo.

Introduction to the Leather series products

(Hobonichi Techo 2025 lineup)

Staff List

Photographer: Styled Images: Masaki Miyashita / Product Detail: Hiroyuki Oe
Stylist: Mari Nagasaka

LeatherSteel GrayWeeks Hardcover Book / Weekly Horizontal / ENG or JPN edition / Jan start / Mon start

¥4,400(incl. tax)

Normal

Available

Compatible Techo Covers

Weeks Cover

Specifications

Size	H: 188 x W: 94 x T: 11 mm / H: 7.4" x W: 3.7" x T: 0.4" *Specifications may vary slightly
Weight	Approx. 138 g
Main material	Cow leather / Paper

Weeks Book (English / January Start)

Language	English
Pages	240 pages
Paper Type / Binding	Thin, light Tomoe River paper resistant to bleeding and designed for planners / Stitch-binding
Graph Paper Size	3.55 mm
Start of Week	Monday-start week
Yearly Calendar	2024, 2025, 2026
Yearly Index	Jan. - Dec. 2025 (2 pages)
Monthly Calendar	Dec. 2024 - Mar. 2026 (32 pages)
Daily Quotes	One per week (English)
Weekly Calendar	Nov. 25, 2024 - Jan. 4, 2026 (116 pages) *All weekly pages include quotes.
Graph Paper	73 pages
Bonus Pages	Shorthand Note-Taking / Using Common Items to Measure Size / Favorites / My 100 / Sample Symbols and Icons / Oodles of Noodles / 365 Days Check-Off Sheet / Addresses / Personal Notes
Listed Information	Week of the year / Moon phase (weekly pages include every phase, monthly calendars only include full and new moon)
Other	See the Exploring Each Type page for more details

Weeks Book (Japanese / January Start)

Language	Japanese
Pages	240 pages
Paper Type / Binding	Thin, light Tomoe River paper resistant to bleeding and designed for planners / Stitch-binding
Graph Paper Size	3.55 mm
Start of Week	Monday-start week
Yearly Calendar	2024, 2025, 2026
Yearly Index	Jan. - Dec. 2025 (2 pages)
Monthly Calendar	Dec. 2024 - Mar. 2026 (32 pages)
Daily Quotes	One per week (Japanese)
Weekly Pages	Nov. 25, 2024 - Jan. 4, 2026 (116 pages) *All weekly pages include quotes.
Graph Paper	69 pages
Bonus Pages	Shorthand Note-Taking / Using Common Items to Measure Size / My 100 / Sample Symbols and Icons / Recommended Noodle List of 47 Prefectures / Solar Terms / Emergency Preparedness / Age Table / Conversion Chart / Getting the most of Hobonichi / Contact List / Personal Notes
Listed Information	Week of the year / Rokuyo (traditional Japanese calendar) / Solar terms / Japanese holidays / Moon phase (weekly pages include every phase, monthly calendars only include full and new moon)
Other	See the Exploring Each Type page for more details

Please Read Before You Buy

In order to provide you with the most satisfaction for your product, we've compiled a list of warnings, potential issues, and tips to keep in mind for this particular product. Please be sure to read this information carefully before placing your order.

Test fountain pens before regular use: The Hobonichi Techo's Tomoe River paper is designed to prevent bleed-through, but some fountain pens and water-based ink pens are not compatible with this paper. When switching to a new pen, we recommend testing the pen somewhere in the book, such as the back memo pages, to see if the ink bleeds through or takes an especially long time to dry.
Leather may contain preexisting wrinkles and marks: In order to allow customers the enjoyment of all-natural leather, the leather is processed in a way that retains its original feel. This may leave imperfections visible on the surface of the cover, such as wrinkles, scratches, stains, or vein marks.
Depending on the conditions in which the cover is used, natural oils of the leather may emerge and appear as stains. We ask for your understanding for these naturally-occurring characteristics of genuine leather.
Cover corners are slightly bumpy and shiny: The corners of the cover contain light traces of press marks, shines, and lumps. This is an unavoidable part of the manufacturing process.
Coloring may stain other objects: The dye in the cover may stain other objects if it rubs against or sticks to them, especially if the cover is wet from water or sweat from your hands. Please store with care.

Imprinted year numbers may peel: The numbers of the year are stamped onto the cover in metallic or other colored leaf, so strong rubbing or everyday use may cause the numbers to peel off.
Avoid using with Clear Cover: This cover uses thicker materials than usual, so it may not fit. Forcing it into a Clear Cover may damage the product.
Avoid storing in hot and humid places: Please avoid storing your product in hot, humid places or placing it atop other objects for long periods of time as this may result in lower quality and color stains.
Dark spots or spotted areas may be visible: During the leather drying process, particles floating in the air may adhere to the surface. Please understand this is an unavoidable part of the production process.

User recommendations

If you’ve used any of these products, we welcome your notes on what you like about them or what led you to buy them so we can share it with customers who are currently considering these products. We’d also love to welcome comments from customers who purchased their techo outside the Hobonichi Store or received their book as a gift.

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