As a new addition to Citizen Key's Classic Square series in February 2026.EG2797-13Ahas appeared.
``A design that exudes gentleness and calm while exuding a vintage atmosphere.'' This is a book that conveys exactly what the official words say. The silhouette of the small square case, Roman numeral indexes, and embossed brown cowhide band gives it a nostalgic feel, like seeing it in an old photo.
The case size is ultra-compact, measuring 24.5 mm long x 17.5 mm wide x 6 mm thick, and weighs approximately 12 g. Its greatest feature is its extremely light weight, so you won't feel anything when you put it on your wrist. For those who have been looking for a watch that fits their slender wrists for many years, or for those who don't like large watches, this may be the answer.
Approximately 12g and 24.5mm long—so light and small that it almost disappears when you put it on your wrist.
Classic Square's world view: The square form creates a classical appearance.
Roman numerals and gold plating—a classic dial that elevates the class of your watch.
Embossed cowhide band and large crown—Classic Square's attention to detail is in the details.
■ Main features
- Classic Square design:The square case with rounded sides and indexes with Roman numerals create an elegant and classic feel.
- Gold plating (yellow gold color):Gold-colored plating is applied to the case, creating an elegant contrast with the silver dial.
- Embossed cowhide band (brown):A classic band with textured embossing. Combines calmness and elegance
- Large crown:Placing a large crown in a small case creates an accent and ensures ease of operation.
- Equipped with Cal.G620:Photovoltaic eco-drive. Lasts approximately 8 months when fully charged
- Ultra-compact and ultra-lightweight design:Extremely small form measuring 24.5mm long x 17.5mm wide x 6mm thick and approximately 12g. Easily fits even small wrists
- Compatible with arm circumference 12.5-18.5cm:Fits a wide range of wrists from narrow to medium wrists
- Recycled materials used for dial parts:Reflects Citizen's commitment to continuing to select sustainable materials
- Charging warning function/second hand stop function:Supports power management and time correction
- Waterproof for everyday life:Compatible with everyday life scenes
- 1% for the Planet compatible:Participating in an initiative to return 1% of annual sales to global environmental conservation activities
- Eco Mark certified products:Eco-Drive, which does not require battery replacement, receives certification
■Specs
| brand | CITIZEN Kii |
|---|---|
| series | Classic Square |
| Product number | EG2797-13A |
| Target | ladies |
| Caliber No. | G620 |
| Drive method | Photovoltaic eco-drive |
| precision | Average monthly difference ±15 seconds |
| duration | Approximately 8 months when fully charged |
| case material | Stainless steel (mirror satin finish) |
| Case surface treatment | yellow gold color plating |
| band material | Cowhide (embossed) |
| glass | crystal glass |
| Dial color | Silver (Roman numeral index, recycled material used) |
| band color | brown |
| case size | Height 24.5mm x Width 17.5mm x Thickness 6mm |
| Bandwidth (maximum) | 12mm |
| Bandwidth (min) | 10mm |
| band adjustable size | Approximately 12.5-18.5cm |
| weight | Approximately 12g |
| waterproof | Waterproof for daily life |
| Other functions | Charging warning function / Second hand stop function / Dial parts: Recycled material / 1% for the Planet compatible / Eco Mark certified |
| Release date | Released in February 2026 |
| Guarantee | 3 years international warranty (5 years domestic warranty with MY CITIZEN registration) *Nanapure is currently running a 7-year warranty campaign. |
■ "A small complete model that fits any wrist" at approximately 12g and 24.5mm in height.
The case size of EG2797-13A is 24.5mm long x 17.5mm wide x 6mm thick. You might be worried about whether you can really read the time when it's this small, but the Roman numeral index and simple hour and minute hands ensure visibility. At 6mm thick, it's one of the thinnest even for a typical ladies' watch, and it's designed to prevent it from getting caught on the cuff.
Weighing approximately 12g, it is lighter than three 10-yen coins. The combination of a stainless steel case and a cowhide band achieves this value thanks to Key's ultra-thin design technology. The wide adjustment range of arm circumference from 12.5 to 18.5 cm is a solid answer to the small watch market, where there have been few options, especially for those with narrow wrists.
■ “Classic three-piece set” of gold, Roman numerals and embossed cowhide
The three keywords that make up the design of EG2797-13A are gold plating, Roman numeral indexes, and a embossed cowhide band. When these three elements come together, it naturally creates a classical atmosphere reminiscent of the early days of mechanical watches. It can be said that it is a reinterpretation of past watch aesthetics on top of modern materials and manufacturing techniques.
The case has rounded sides, so even though it is square, it does not feel angular or hard. The large crown acts as a subtle accent, adding just the right amount of individuality to the watch as a whole. It can be used not only for dressy occasions, but also as an accent for casual daily outfits.
■ Cal.G620 Eco Drive—8 months of continuous movement with light
The equipped Cal.G620 is a photovoltaic Eco-Drive movement. The battery lasts about 8 months when fully charged, and there is no need to replace batteries, so there is no need to worry about maintenance. The charging warning function allows you to detect signs of power shortage in advance, and the second hand stop function lets you know when it's time to set the time.
The environmental friendliness of using recycled materials for dial parts and participating in 1% for the Planet is one of the reasons why people want to keep using it for a long time. As an Eco Mark-certified product, the value of ``a watch that does not dispose of batteries'' is recognized for its ability to both be a fashion choice and be environmentally conscious.
■ Recommended for these people
- Those who were looking for a vintage-style model of Citizen Key Classic Square
- For those who like classic ladies watches with gold, Roman numerals, and cowhide bands.
- People who have been looking for an ultra-compact watch that fits their thin wrists (12.5 cm and up)
- Those looking for an ultra-lightweight ladies' watch that weighs approximately 12g and won't cause fatigue.
- Those who want an eco-drive model that does not require battery replacement
- Those who are considering comparing with EG2790-12A and EG2799-18W
- For those who want to give an elegant and compact bottle as a present for employment, birthdays, and anniversaries.
■ Buyer's comment
When I first picked up the EG2797-13A, I thought, "This lightness is a violation." At about 12g, you really don't feel anything. I often hear from people with thin wrists that they have a hard time finding the size that fits them, and this case size, measuring 24.5mm in height, can be delivered to such people with confidence. The classic combination of gold, Roman numerals and embossed leather is classy and makes a great gift. Perfect for those who want to add dignity to their everyday outfits.
— Nanapure Buyer Fujimuro

