Glycine Combat Moonphase: Classic Combat Design Meets a Moonphase Complication

A moonphase display brings a touch of celestial character to a traditional timepiece, showing the changing appearance of the Moon directly on the dial. While this complication is often associated with dressier watches, it can also add an unexpected sense of elegance to a more versatile design.

The Glycine Combat Moon phase takes this approach by combining the practical character of the Combat collection with a refined moonphase display. Its 40mm stainless steel case, black sunburst dial, and leather strap give the watch a classic appearance, while the Swiss automatic movement adds mechanical appeal beneath the dial.

As a Swiss watchmaker with a history dating back to 1914, Glycine has developed a reputation through collections such as the Airman and Combat. The Combat Moonphase offers a different expression of the brand, bringing together a clean, functional design with details that give this Glycine watch a more sophisticated character.

Curious about how the Glycine Combat Moonphase performs in terms of its movement, dial, case, and strap? Let’s take a closer look at the design and specifications that define this distinctive timepiece.

Moon Phase Watches Explained: Tracking the Lunar Cycle on Your Wrist

A moon phase watch is a timepiece designed to display the Moon’s current phase through a dedicated opening, or aperture, on the dial. Rather than showing the Moon as a static decorative element, the display changes gradually to reflect how the Moon appears from Earth throughout its lunar cycle.

The Moon’s appearance changes because its position relative to the Earth and Sun constantly shifts. As it orbits the Earth, different portions of its sunlit surface become visible from our perspective. This creates the familiar sequence of lunar phases, which repeats approximately every 29.5 days.

A moon phase display typically represents four key phases:

• New Moon: The Moon sits between the Earth and the Sun, leaving the side facing Earth largely unilluminated.
• First Quarter: About one-quarter of the lunar cycle has passed, with the right half of the Moon appearing illuminated from Earth.
• Full Moon: The Moon is positioned opposite the Sun relative to Earth, allowing its visible side to appear fully illuminated.
• Last Quarter: The left half of the Moon appears illuminated, marking the stage opposite to the First Quarter.

The way a moon phase display tracks the lunar cycle depends partly on the type of movement powering the watch. Quartz models use electronic mechanisms to calculate and control the display, while mechanical and automatic watches rely on a system of gears to reproduce the Moon’s movement.

In a traditional mechanical moon phase mechanism, a rotating disc sits behind the dial. The disc features two Moon illustrations and completes one rotation in approximately 59 days. This allows each Moon to pass through the aperture once during a roughly 29.5-day lunar cycle.

The disc is typically connected to a 59-tooth gear, which advances gradually as the watch runs. Since the gear moves only a small amount each day, the Moon image on the dial may appear almost unchanged from one day to the next. However, these tiny movements accumulate over time to create the gradual transition from one lunar phase to another.

The use of two Moon images on the disc also helps the mechanism continuously represent successive lunar cycles. As one Moon completes its passage across the display, the second Moon takes its place for the next cycle.

However, a traditional moon phase mechanism is an approximation rather than a perfect representation of the lunar cycle. The actual synodic month lasts approximately 29.53 days, while the mechanism generally works on a 29.5-day cycle. That small difference gradually accumulates, meaning the moon phase display may eventually need to be manually corrected.

For everyday wear, this level of precision is generally sufficient. More sophisticated moonphase mechanisms can use additional gear teeth to reduce the accumulated error and extend the period between adjustments.

Read also: Top 6 Glycine Field Watch Models from the Combat Collection

Glycine Combat Moon Phase: A Classic Swiss-Made Watch with a Moonphase Display

Glycine’s Combat collection represents a different chapter in the Swiss brand’s watchmaking history. Introduced in 1967, the collection was created to bring the practicality and resilience associated with the Airman line into watches designed for everyday wear, military use, and sporting activities. Its designs emphasize straightforward dials, clear hour markers, and functional details that make the watches easy to read while maintaining a distinctly classic character.

Over the years, the Combat name has expanded into different styles, including models that take a more refined approach to the collection’s utilitarian roots. Among them is the Glycine Combat Classic 40 “Moon Phase” Black Ref. GL0386, which combines the familiar simplicity of the Combat line with a moon phase complication. The result is a watch that brings a touch of traditional watchmaking to an otherwise clean and versatile design.

For this Glycine Combat Moon phase review, we’ll take a closer look at how the watch balances its classic styling with practical specifications. The Glycine Combat watch also brings together a Swiss automatic movement, a moon phase display, sapphire crystal, and a leather strap in a compact 40mm case. Here are the key details to know about this moonphase model.

1. A Reliable Swiss Automatic Engine Under the Dial

At the center of the Glycine Combat Moon phase is the GL280 automatic movement. This Swiss-made calibre is based on the SW280 and uses 26 jewels to support its mechanical operation. With a beat rate of 28,800 beats per hour, the movement operates at 4Hz and offers a power reserve of approximately 38 hours.

As an automatic movement, the GL280 generates power through the natural movement of the wearer’s wrist. This makes it practical for regular use without requiring a battery. Its established movement architecture also gives the watch a balance between mechanical character and everyday usability.

The movement can also be viewed through the display case back, giving the watch an additional mechanical element that can be appreciated even when the moon phase display is not in view. Combined with the watch’s 100m water resistance, the GL280 gives this dressier Combat model a practical foundation for daily wear.

2. A Refined Black Dial with a Celestial Touch

The watch features a black sunburst dial that gives the otherwise straightforward design a subtle visual depth. Slim leaf-shaped hands and Arabic numeral hour markers keep the layout clean, allowing the time to be read at a glance without overwhelming the dial.

The calendar display sits at the 3 o’clock position, adding a useful date function while preserving the dial’s balanced appearance. The hour markers and hands are also equipped with luminous material, helping improve visibility in darker surroundings.

The most distinctive element appears at the lower portion of the dial: the moon phase display. Against a dark blue background, a polished gold moon and stars create a striking contrast and introduce a more decorative character to the otherwise restrained design. This complication gives the watch a more sophisticated personality without taking away from its legibility.

Protecting the dial is a sapphire crystal, known for its strong resistance to scratches. The crystal also features three layers of anti-reflective coating on its underside, helping reduce reflections and maintain clearer visibility of the dial.

Read also: 10 Best Moon Phase Watches for Men and Women

3. A Compact 40mm Case with Classic Finishing

The Combat Moon phase is housed in a stainless steel case measuring 40mm in diameter and 12.2mm in thickness. These proportions give the watch a relatively compact presence on the wrist while leaving enough room for the dial and moon phase display to stand out.

Its case construction uses 316L stainless steel, a material widely used in watchmaking for its durability and resistance to corrosion. The finishing combines brushed and polished surfaces, creating a subtle contrast across the case. Fine satin brushing gives the main surfaces a more understated appearance, while the polished bezel adds a sharper, dressier accent.

The watch also uses a push-in crown, keeping the side profile simple and consistent with its classic styling. With a 22mm lug width, the case accommodates a proportionally sized strap while maintaining the overall balance of the design.

Despite its dressier appearance, the watch offers 100m of water resistance. This gives the Combat Moon phase a practical advantage for everyday use, allowing its refined styling to be paired with a useful level of water protection.

4. A Leather Strap That Complements Its Dressier Character

Completing the watch is a 22mm leather strap featuring an alligator-style pattern. Its texture adds a more formal touch to the Combat Moon phase, reinforcing the model’s position as a dressier interpretation of the collection.

The leather construction also works well with the black dial and stainless steel case, creating a cohesive appearance without introducing unnecessary visual elements. A steel tang buckle secures the strap to the wrist and complements the metal case.

Overall, the strap helps bring together the watch’s combination of classic proportions and refined details. Rather than emphasizing the rugged side of the Combat name, it leans into the collection’s more elegant character while retaining the practicality expected from a daily-wear Swiss timepiece.

Final Thought

The Glycine Combat Moon Phase brings together the practical character of the Combat collection and the traditional appeal of a moon phase complication. Instead of leaning entirely into the rugged aesthetic associated with the collection, this model takes a more refined direction through its clean black dial, polished details, and leather strap. The result is a timepiece that retains the identity of the Combat line while presenting it in a more sophisticated form.

One of its strongest features is the way the moon phase display becomes the visual focal point of the dial. The gold moon and stars against the dark blue background create a subtle contrast with the black sunburst dial, giving the watch additional depth without making it feel overly elaborate. Combined with the date display, luminous hands and markers, and sapphire crystal, the dial balances decorative details with everyday functionality.

The 40mm stainless steel case also contributes to the watch’s versatile character. Its relatively compact dimensions, contrasting brushed and polished surfaces, and 22mm leather strap give the Combat Moon phase a dressier appearance, while the 100m water resistance adds practicality for regular wear. Underneath, the GL280 automatic movement further reinforces its mechanical appeal with a 38-hour power reserve and a 4Hz beat rate.

Overall, the Glycine Combat Moon Phase stands out as a more elegant interpretation of the Combat collection. It combines Swiss automatic watchmaking with a distinctive moon phase display, classic proportions, and practical specifications. For those looking for a watch that can bridge the gap between a traditional dress watch and a more versatile everyday timepiece, the Combat Moon Phase offers an interesting balance of style, mechanical character, and functionality.

Read also: Glycine Combat Sub Review: A Vintage in Tactical Dive Watch