From “Orient Star”, I expressed the scene of Japan with white butterfly shells and gradation … – Epson

Epson will release one new M45 F7 Mechanical Moon Phase limited edition model from the Orient Star M45 collection on October 26, 2023. The new collection name, M45, refers to the star cluster Subaru (Pleiades), and is composed of representative models of Orient Star, which express the eternal flow of time with a classical design with universality and calmness in the design elements. The new work expresses the natural flow of Japan with a brown dial created by white butterfly shells and gradation.


In 2021, the 70th anniversary of the Orient Star, a simple moon-aged model was born that removed the open work at 9 o’clock, while inheriting classical design codes such as Roman numerals, railway scales, and leaf-shaped hands to the “Mechanical Moon Phase”, which is representative of the Orient Star. In 2022, with the theme of a watch that evokes the natural flow of time in the Japan, a limited edition model with a new design that expresses the image of the moon reflected on the surface of Lake Tazawa in Akita Prefecture with white butterfly shells and gradations has opened up a new world of beauty in the “Mechanical Moon Phase”.

The new work, which will be released in limited quantities in Japan of 350 pieces, is based on the same theme and emotionally expresses the scene of Lake Tazawa at night when winter approaches. The brown dial created by combining a white butterfly shell with a gradation of black around the circumference is reminiscent of the surface of a lake at a quiet night, and the silver moon drawn on the disk of the moon phase mechanism represents the moon floating vaguely behind the clouds. No two unique expressions of the white butterfly shells are the same, and even the gentle moonlight illuminating the surface of the lake in the quiet passage of time ticking by the clock and the late autumn breeze blowing through the sky seem to come to mind. Intricate details such as Roman numerals with a three-dimensional overlay, a black ring separating the dials, and the Orient Star’s “OS mark” in the center with transparent hidden printing can also be clearly appreciated through the glass in both spherical sapphire crystals with a non-reflective coating.

In addition, the bronze-plated bezel set in a high-quality stainless steel (SUS316L) case connects the dial and the crocodile skin band in a continuous brown tone, creating a sense of elegance and luxury as well as a sense of unity throughout the watch. It also comes with a metal band that you can change to your liking. This metal band has a push-kannon buckle and a small adjustment that can be adjusted in length with short frames for a comfortable fit.

Also attractive is the high-performance, high-quality in-house movement unique to the Orient Star M45 collection. The automatic movement is the F7M65 calibre, which offers a power reserve of more than 50 hours and a stable precision of +15 seconds ~ -5 seconds per day. The beautiful finish of the movement, which can be seen through the see-through back of sapphire crystal, is also exceptional.


■ The prices listed are the manufacturer’s suggested retail price.

White Butterfly Dial

Engraving on the caseback

About M Collections

Until now, Orient Star’s lineup consisted of classical, contemporary, and sports, but now we are launching a new design collection, “M Collections.” “M Collections” is a collection with the theme of nebulae and star clusters familiar to Greek mythology and Japan, and is aimed at watch lovers and those who want a higher quality watch. While maintaining the classical, contemporary, and sports collections of the past, “M Collections” is a product lineup that aims to take quality to the next level.

The M45 collection, named after the star cluster Subaru (Pleiades), is made up of models that represent the eternal passage of time and adopt a universal and calm design. Inspired by the star cluster in the constellation Perseus, famous for its meteor showers, the M34 collection features sharp, powerful, and edgy designs that can be worn in a wide range of occasions. The M42, named after Orion, the son of the sea god Poseidon, features functionality and comfort suitable for an active lifestyle, with a high-performance diver’s watch backed by high technology and history.

About Orient Star

A mechanical watch called the “Shining Star” forever. Born in 1951, Orient Star has always evolved its technology and design with the desire to continue to shine with you. Orient Star will actively disseminate MADE IN JAPAN gems that can only be obtained here, not only in Japan but also overseas, which combines exquisite manufacturing that demonstrates traditional craftsmanship, high-quality mechanical movements based on our integrated system, and original designs.

Brief history

1951 Birth of the Orient Star
1957 Announcement of the “Orient Star Dynamic (Note)” with three hands set on the central axis of hours, minutes, and seconds
1971 The practical and high-precision core movement “46 series” supporting the Orient Star is born.
1991 Launched the skeleton “Montbige (Note)” that pursues quality and aesthetics.
1996 Equipped with the power reserve indicator, now an icon of the Orient Star
2017 Orient Watch Co., Ltd. merged with Seiko Epson Corporation, which has established numerous achievements in the history of wristwatches through innovative design and development. By fusing each other’s craftsmanship, original design, and advanced advanced technology, we will create a foundation for a new leap forward.
2017 Launched the iconic mechanical watch “Mechanical Moon Phase” that marks the time of the universe, marking the beginning of the new Orient Star watchmaking.
2021 The Orient Star celebrates its 70th anniversary. The design has evolved along with the technical aspects, and the “skeleton” incorporates models and motifs that feel space in the “skeleton”, which introduces a cutting-edge movement equipped with a silicon gang car that combines improved duration and beauty.

Note: It is currently discontinued.

– Product Overview –


trade name
M45 F7 Mechanical Moon Phase

Expected release date
October 26, 2023

Product number


Suggested retail price



In-house calibre F7M65 automatic (with manual winding)

Operating time
50 hours or more

Daily difference +15 sec~-5 sec

Case material
Stainless steel (SUS316L, bezel / crown: bronze plated)

Case Size
Length 49.0mm / Width 41.0mm / Thickness 13.8mm

Limited and serial number engraving

Front: Both spherical sapphire crystal (SAR coating), Back: Sapphire crystal


Brown crocodile leather / Push tri-fold type (Medium distillation) / Width 20mm / With replacement metal band

Dial color
White butterfly shell (brown gradient)

Limited edition of 350 pieces in Japan

Key features

With moon age function (with equipment for correcting lunar age), reinforced waterproof for daily life (5 ATM),

Power reserve display with second hand stop, 22 stones, see-through back, date

■ About the place of purchase

It can be purchased at mass retailers, department stores, watch specialty stores, mail order sites, and Orient Star’s official online store “with ORIENT STAR” nationwide.

■Orient Star official website

■with ORIENT STAR|Official Online Store

With Orient Star, which values the connection with customers, is launching a new Birthday event.

In addition, information on watch maintenance and new services will be disseminated. Please register as a member or e-mail magazine.

■SNS Orient Star Official Account

Orient Star Official Facebook:

Orient Star Official Instagram:

more than

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