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Our ES-M9015 Calibre Movement

This article explores the ES-M9015 calibre: what it is, why we chose it, and how we made it our own.
WRITTEN BY
Scott Lancaster
PUBLISHED ON
July 29, 2025

At the heart of every watch lies its movement — the mechanism that turns engineering into timekeeping. For the Evermont, we wanted more than reliability. We wanted a calibre that delivers precision, durability, and refinement. The result is the ES-M9015.

What ES-M9015 Means

The designation isn’t arbitrary. Each part of the code tells the story of its creation:

  • ESEmerton Scott, the brand behind the design and vision.
  • MMiyota, our trusted partner and the foundation of the movement.
  • 9015 → The specific Miyota calibre selected for its slim profile and proven dependability.

Together, this forms the ES-M9015 — a calibre that combines Japanese reliability with Emerton Scott’s finishing and design standards, offering exceptional value in its class.

A Foundation Worth Building On

The Miyota 9015 was chosen for its slim architecture, which allowed us to achieve the elegant 9.8mm profile of the Evermont case without sacrificing durability. It beats at 28,800 vibrations per hour for smooth hand movement and accurate timekeeping. With 24 jewels to reduce friction and a 42-hour power reserve, the movement is built for consistent, everyday performance.

Elevating the Craft

While precision is essential, we believe a movement should also look the part. That’s why we elevated the 9019 into the ES-M9015 with careful decoration:

  • Electroplated Blued Screws → Durable and visually striking, visible through the sapphire caseback.
  • Geneva Wave Decoration → A classic finishing technique that adds depth and refinement.
  • Custom Rotor Detailing → Designed to complement the aesthetic philosophy of Emerton Scott.

Visible Through Sapphire

The Evermont features a double AR-coated sapphire crystal caseback, showcasing the ES-M9015 in full view. Even if the back of a watch isn’t often seen, we believe it should be crafted with the same care as the dial. By revealing the calibre, we invite wearers to connect with the mechanics that power their watch.

Precision You Can See

The ES-M9015 is more than a movement — it reflects our philosophy of combining proven engineering with thoughtful design. Reliable, accurate, and finished to a higher standard, it’s a calibre made to perform and built to be seen.

In the Evermont, the ES-M9015 isn’t just what makes the watch tick — it's a reflection of our attention to detail and a reminder that that going that extra mile is always worth the time and effort.

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