Mühle-Glashütte Teutonia IV BlueMoon M1-44-62-LB

The Mühle-Glashütte Teutonia IV BlueMoon is the most atmospheric watch Mühle has ever made. A "blue moon" is the second full moon in a calendar month — a rare event that lent this watch its name and its identity. The midnight blue dial sets the mood immediately: deep, dark, and nocturnal. But the defining detail is the moonphase display, repositioned to a cut-out between 6 and 9 o'clock — closer to the centre of the dial than on any other Mühle, and unlike any standard moonphase placement. This new orbit allowed the moon itself to grow to a proud six millimetres in diameter, appearing as a true supermoon against the 39mm case. Its surface is rendered with lovingly imitated craters, set against a deep blue night sky scattered with small stars.

At 39mm, the BlueMoon is two millimetres smaller than the standard Teutonia IV Moonphase and deliberately designed as a unisex watch. It fits comfortably on smaller wrists without losing presence, and sits elegantly under a shirt cuff without catching. The bright nickel-plated hands and applied indices shimmer against the midnight blue dial, while light azure minute and seconds numerals provide readability without breaking the nocturnal colour scheme. Every design decision serves the same goal: make the dial feel like a night sky with the moon at its centre.

Inside, the SW 288-1 in the Mühle version — a different calibre from the standard Moonphase, purpose-built for this repositioned complication — features the patented woodpecker neck regulation, Mühle rotor, blued screws, and Glashütte solarisation finishing. The movement is tested in six positions and regulated to achieve accuracy between 0 and +8 seconds per day — a precision target that complies with the German chronometer standard, though the BlueMoon is not individually certified. The exhibition caseback reveals what Mühle calls "the dark side of the moon" — the movement working quietly behind the midnight dial.

At a Glance

• Brand Mühle-Glashütte
• Collection Teutonia IV BlueMoon
• Reference M1-44-62-LB
• Movement SW 288-1, Mühle Version
• Complication Moonphase (Between 6 & 9 o'clock)
• Case Size 39.0mm × 11.8mm
• Dial Midnight Blue (Nightblue)
• Regulation Patented Woodpecker Neck
• Glass Domed, Anti-Reflective Sapphire Crystal
• Caseback Exhibition (Transparent)
• Water Resistance 10 bar (100m)
• Sizing Unisex (39mm)

Why You'll Love It

• Repositioned moonphase between 6 and 9 o'clock — closer to the centre of the dial than any other Mühle, creating a more prominent, immersive display
• Six-millimetre moon with crater surface detail — a "supermoon" set against a deep blue night sky scattered with small stars, the most atmospheric moonphase in the Mühle collection
• Midnight blue dial — deep, dark, and nocturnal, with bright nickel-plated hands and light azure numerals that shimmer without disrupting the colour story
• 39mm unisex case — elegant on smaller wrists, refined under a shirt cuff, and deliberately positioned as a watch for both men and women
• Patented woodpecker neck regulation with movement regulated to 0 to +8 seconds per day across six positions — precision that meets the German chronometer standard
• Exhibition caseback reveals the SW 288-1 movement — "the dark side of the moon"

Perfect For

• Moonphase enthusiasts
• Unisex / smaller wrists
• Blue dial lovers
• Business & evening wear
• Romantic complication
• German watchmaking connoisseurs
• Wedding or anniversary gift
• Gift for her or him

Key Features

• Repositioned moonphase display — The moon disc sits in a specially shaped cut-out between 6 and 9 o'clock, positioned closer to the dial centre than on the standard Teutonia IV Moonphase. This "new orbit" allowed the moon to grow to six millimetres — a supermoon within the 39mm case. The disc completes one rotation every 59 days, covering two 29.5-day lunar cycles. The crater-detailed moon glows against a deep blue night sky decorated with small stars
• SW 288-1, Mühle Version — A Sellita calibre distinct from the SW 280-1 in the standard Moonphase, purpose-built for the BlueMoon's repositioned complication. Refined in Glashütte with the patented woodpecker neck regulation, Mühle rotor, blued screws, Glashütte solarisation, and perlage finishing. Regulated in six positions to achieve 0 to +8 seconds per day
• Patented woodpecker neck regulation — Developed in 2003, the spring's distinctive shape locks the regulator arm both sideways and downward onto the balance cock, delivering superior shock resistance compared to a traditional swan neck regulator
• Midnight blue dial with light azure numerals — The deep nightblue surface, bright nickel-plated applied indices, and light azure minute and seconds numerals create a layered dial that is atmospheric yet legible. Every colour choice reinforces the nocturnal theme
• 39mm unisex case with bevelled roof bezel and volute-shaped horns — Two millimetres smaller than the standard Teutonia IV Moonphase (41mm), the BlueMoon is deliberately sized for both men and women. The slightly curved horns hug the wrist, and the tops of the horns are finely polished — a detail that can only be executed by hand
• Premium black leather strap with butterfly clasp — 20mm strap with screwed attachment bridges for added security, and a secure folding deployment clasp

Technical Specifications

The Glashütte Difference

• Glashütte, Saxony — Germany's most storied watchmaking town, home to A. Lange & Söhne, Glashütte Original, NOMOS, and Mühle-Glashütte. Every Mühle watch is assembled, regulated, and tested here
• Six generations, one family — Founded by Robert Mühle in 1869 as a maker of precision measuring instruments for Glashütte's watchmakers. The company survived two World Wars, Soviet-era expropriation, and reunification. Now led by Thilo Mühle, with the sixth generation already on board
• Teutonia at 20 — The BlueMoon was released in 2022 to mark the 20th anniversary of the Teutonia collection, the most successful watch family in Mühle's history. It represents the boldest step forward in the collection's evolution — the first Mühle to reposition the moonphase away from the traditional 6 o'clock placement and into a new orbit closer to the centre of the dial
• Patented innovation — The woodpecker neck regulation (2003), Mühle three-quarter plate (2008), and proprietary in-house calibres (MU 9408, MU 9411) demonstrate that this is a manufacturer, not merely an assembler

Best Matched With

• Midnight blue suit
• White silk blouse
• Black dress shirt
• Evening wear
• Silver jewellery
• Charcoal blazer
• Smart monochrome

Frequently Asked Questions

Why Buy from City Chain

• Authorised Retailer Official Mühle-Glashütte dealer in Singapore
• 100% Authentic Genuine German-made timepiece
• Manufacturer Warranty Official Mühle-Glashütte warranty
• Strap Adjustment Complimentary sizing in-store