Description
Moritz Grossmann GMT Guilloche Orange
Reference: MG-003890
Moritz Grossmann captures the essence of global wanderlust and refined horology in the GMT Guilloche Orange, an exceptional timepiece designed for discerning watch enthusiasts. Inspired by the mesmerising glow of the setting sun, the watch’s evocative orange guillochéd dial delivers an elegant interplay of colour and texture, effortlessly drawing the eye and capturing the imagination.
The dial itself is a testament to traditional craftsmanship, meticulously hand-guillochéd by skilled artisans using historic rose engines. Each dial is adorned with intricate geometric patterns etched into solid silver, then coated with a specialised orange finish. The guilloché technique demands the artisan’s unwavering attention, precision, and delicate manipulation of the burin, culminating in a radiant surface that reflects light uniquely from every angle. Polished steel lance-shaped hands glide gracefully above the captivating dial, enhancing readability and delivering an impeccable aesthetic harmony.
Functionality complements elegance in the GMT Guilloche Orange through its practical dual-time complication. A 24-hour scale encircles the dial, clearly indicating a secondary timezone via an intuitive arrow-shaped hand. This additional timezone can be independently adjusted forwards or backwards using a dedicated crown positioned at 10 o’clock, while the primary 12-hour display remains untouched, ensuring effortless operation for frequent travellers.
Turning the watch over reveals the equally impressive calibre 100.8, a manually wound movement finely decorated and visible through the sapphire crystal caseback. This remarkable calibre features hallmark Grossmann elements, including a 2/3 plate crafted from untreated German silver, distinctive raised gold chatons secured with pan-head screws, and a cantilevered balance cock adorned with hand-engraving. The precision mechanism integrates an innovative system of gear wheels that drive the second timezone function, showcasing Moritz Grossmann’s commitment to mechanical sophistication and artistry.
Encased in stainless steel and accompanied by a luxurious hand-stitched black alligator leather strap, the GMT Guilloche Orange epitomises refined elegance. Limited to only eight pieces worldwide, this watch represents an exclusive opportunity for collectors and watch enthusiasts to own a truly distinctive piece of independent horological craftsmanship.
Technical Specifications
- Reference: MG-003890
- Movement: Manufactory calibre 100.8, manual winding, regulated in five positions
- Functions: Hours, minutes, subsidiary seconds with stop seconds, second time zone (24-hour display), Grossmann manual winder with pusher
- Special Features: Grossmann balance, hand-setting override, separate crown at 10 o’clock for second timezone adjustment, micrometer screw on cantilevered balance cock, pillar movement with 2/3 plate in untreated German silver, hand-engraved balance cock and escape-wheel cock
- Parts: 253 components
- Jewels: 26 jewels, 3 set in screwed gold chatons
- Escapement: Lever escapement
- Balance: Diameter 14.2 mm, frequency 18,000 semi-oscillations/hour
- Power Reserve: 42 hours when fully wound
- Case: Stainless steel, 41.0 mm diameter, 11.85 mm height
- Dial: Solid silver, hand-guillochéd in orange, gold hour markers
- Hands: Manually crafted polished steel hands, annealed brown variant
- Crystal: Sapphire crystal, anti-reflective coating on one side
- Strap: Hand-stitched alligator leather, precious metal prong buckle






















