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BOOKS
Beyond Round Watches
(Hardcover)
Beyond Round Watches
(free PDF)
How to spot a fake watch
Beyond Round Watches
(Hardcover)
Beyond Round Watches
(free PDF)
How to spot a fake watch
Named after the emperor who transformed an empire, Constantine embodies the power of transition and the clarity of vision required to lead it. It is a timepiece for men who stand between worlds, honoring tradition while shaping what comes next. The beautiful champagne-colored dial reflects just that.
The Nostalgia Constantine is a 28 x 40 mm rectangular quartz watch in polished hardened stainless steel, 7 mm thick, with a champagne dial, Roman numerals, a Swiss ETA 901.001 movement and an 11-year battery.
The polished hardened steel case represents structure, discipline, and permanence. The champagne-colored dial introduces warmth, perspective, and forward momentum. Together, they express balance, the tension between strength and refinement, legacy and evolution. Transition guided by vision.
Its rectangular 28 x 40 mm proportions reflect classical order, while the ultra-slim 7 mm profile ensures effortless elegance. The polished steel frame creates sharp architectural lines, encasing a dial that radiates subtle depth through its geometric texture. Roman numerals pay tribute to imperial heritage, while blued hands cut across the champagne surface with confident precision.
Sapphire crystal with anti-reflective coating preserves clarity in every light. The arched, screw-down sealed case back reinforces durability, and 5 ATM water resistance ensures resilience for daily life, swimming and snorkelling.
Inside, the Swiss ETA 901.001 quartz movement beats with unwavering reliability. Operating at 32,000 vibrations per hour, it delivers an accuracy of ±3 minutes per year and an exceptional 11-year battery life. Hours and minutes only, a deliberate commitment to focus and direction.
Each Constantine carries a unique serial number, marking its individuality within a disciplined lineage. Fitted with 20 mm quick-release straps.
Constantine represents more than contrast in color. It represents the courage to evolve without losing foundation. A rectangular watch for men who lead change, with structure, with vision, and with purpose.
Shipping
Free global shipping within 24 hours, fully insured and trackable on every parcel. Your tracking number is in your order confirmation email.
Warranty
Backed by a 10-year international warranty and a 30-day satisfaction guarantee. If you're not satisfied, tell us within 30 days for a full refund.
Tax and duties
The price you see is the price you pay. All taxes and fees are included, with nothing further to pay on delivery. The one exception is a small number of countries where import duty exceeds 30 percent; in those rare cases the duty is not included and may be charged on arrival. Write to info@sonerwatches.com before ordering and we'll confirm how your country is treated.
Ships within 24 hours · Free delivery in 5 to 8 days
10-year warranty · 30-day returns, free and fully refunded
Named after the emperor who transformed an empire, Constantine embodies the power of transition and the clarity of vision required to lead it. It is a timepiece for men who stand between worlds, honoring tradition while shaping what comes next. The beautiful champagne-colored dial reflects just that.
The Nostalgia Constantine is a 28 x 40 mm rectangular quartz watch in polished hardened stainless steel, 7 mm thick, with a champagne dial, Roman numerals, a Swiss ETA 901.001 movement and an 11-year battery.
The polished hardened steel case represents structure, discipline, and permanence. The champagne-colored dial introduces warmth, perspective, and forward momentum. Together, they express balance, the tension between strength and refinement, legacy and evolution. Transition guided by vision.
Its rectangular 28 x 40 mm proportions reflect classical order, while the ultra-slim 7 mm profile ensures effortless elegance. The polished steel frame creates sharp architectural lines, encasing a dial that radiates subtle depth through its geometric texture. Roman numerals pay tribute to imperial heritage, while blued hands cut across the champagne surface with confident precision.
Sapphire crystal with anti-reflective coating preserves clarity in every light. The arched, screw-down sealed case back reinforces durability, and 5 ATM water resistance ensures resilience for daily life, swimming and snorkelling.
Inside, the Swiss ETA 901.001 quartz movement beats with unwavering reliability. Operating at 32,000 vibrations per hour, it delivers an accuracy of ±3 minutes per year and an exceptional 11-year battery life. Hours and minutes only, a deliberate commitment to focus and direction.
Each Constantine carries a unique serial number, marking its individuality within a disciplined lineage. Fitted with 20 mm quick-release straps.
Constantine represents more than contrast in color. It represents the courage to evolve without losing foundation. A rectangular watch for men who lead change, with structure, with vision, and with purpose.
Shipping
Free global shipping within 24 hours, fully insured and trackable on every parcel. Your tracking number is in your order confirmation email.
Warranty
Backed by a 10-year international warranty and a 30-day satisfaction guarantee. If you're not satisfied, tell us within 30 days for a full refund.
Tax and duties
The price you see is the price you pay. All taxes and fees are included, with nothing further to pay on delivery. The one exception is a small number of countries where import duty exceeds 30 percent; in those rare cases the duty is not included and may be charged on arrival. Write to info@sonerwatches.com before ordering and we'll confirm how your country is treated.
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In his own words
Russell Crowe ordered 30 SÖNER watches for his film crew
His video about the watches has passed 1.3 million views.
“I love the look of the watch, the finish, the feel on the wrist. The dial is intricate and luxurious, the finish is smooth and flawless.”
“I love the simple and elegant design of my Nostalgia Stockholm, and it is the perfect size on my seven inch wrist.”
“The entire watch oozes quality and design sophistication. With its curved case back, the Nostalgia sits on the wrist superbly.”
“Classic and amazing piece the curved body sits perfectly on my 7’’ wrist. Highly recommended much more beautiful in person than in the photos.”
“Size is perfect for my 16.5mm wrist. Feels solid and the green dial looks amazing. Any rectangular can’t beat this watch in this price!”
Premium Travel Case
Crafted from premium crazy horse leather, this travel case is designed to protect your watch while developing a rich, individual patina over time. The leather’s natural pull-up effect means every mark and crease adds character, making each case uniquely yours. Compact, durable, and soft on the inside.
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.
Read The Definitive Guide to Rectangular Watches
