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The Nostalgia Monaco is the gold rectangular watch at its most wearable - a warm brushed-gold finish, clean dial, and slim proportions that work on a man's or woman's wrist. Swiss quartz with an 11-year battery, sapphire crystal, and gold PVD over 800HV hardened steel, around four times more scratch-resistant than 316L. From $520.





"It’s not a copy of the past. It’s an evolution of the form."
/Freddie
The official launch is scheduled for November and December 2026. Delivery timing makes it an ideal piece for a Christmas present, whether for yourself or a loved one.
This is the beginning of a new chapter for SÖNER, the creation of our first ever classic Tank watch, the Söner Tank Royal Gold. A watch born from proportion, angles, and precision.
The Söner Tank Royal Gold is a 24 x 34 mm rectangular quartz watch in 800HV hardened stainless steel with polished gold plating, featuring a white dial, Roman numerals, a hidden crown, a Swiss ETA 901.001 movement and an 11-year battery.
Söner Tank Royal Gold unites 1920s Art Deco elegance, the clean lines of modern Swedish design, and the precision of Swiss heritage. Gold was the metal of the Art Deco era, and on a Tank case it does something steel cannot: it warms the geometry without softening it.
Look closely and you begin to see the details. The baton hands are broad, solid and sharply defined, resembling the silhouette of tank cannons. At exactly 12 o'clock, their alignment creates an especially striking impression: a single barrel pointing toward the top of the dial.
Even the numerals carry a unique choice. Almost every watch with Roman numerals, from Cartier to Patek Philippe, Rolex, Longines and most of the other top-tier houses, uses IIII at the 4 o'clock position rather than the grammatically correct IV, a convention chosen for visual balance against the VIII opposite it on the dial. The Söner Tank Royal Gold breaks from that convention and uses the true numeral, IV. It is one of the few watches on the market where the four reads exactly as Roman numerals should.
Then there is the case.
Its distinctive construction takes inspiration from the caterpillar tracks of a tank. The brancards, the vertical parallel case flanks, are deliberately rounded on the top and flat at the bottom, creating a visual profile reminiscent of the individual sections of a tank track. In gold, those alternating curves and flats catch the light in sequence, so the track pattern reads more clearly than it does in steel.
At the heart of the design is a detail you almost don't notice at first: the hidden crown.
By concealing the crown within the case architecture, the Söner Tank Royal Gold preserves an unusually clean and symmetrical silhouette. Nothing interrupts the armour-like geometry. From the front, the case becomes a single, disciplined form, much like the uninterrupted surfaces of an armoured vehicle.
And finally, the gun turret.
The raised upper structures draw inspiration from the gun turret of a tank. They frame the watch from above, giving the case its distinctive vertical architecture and completing the connection between the watch and the machine that inspired it.
The Söner Tank Royal Gold draws its character from elegance, engineering and Art Deco.
Söner Tank Royal.
Wear the difference.

Rectangular watches are not a variation of round design. They are a different design philosophy.
This guide explores the history, geometry, engineering complexity, movement considerations, sizing logic, price tiers, and cultural significance of rectangular watchmaking - structured as a permanent educational resource rather than a buying article.
Explore the full framework and master the category.
Guide to Rectangular Watches