CM Timepieces
Rotary Moonphase Men’s Quartz Watch Roman Numeral White Dial Stainless Tonneau
Rotary Moonphase Men’s Quartz Watch Roman Numeral White Dial Stainless Tonneau
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About This Watch
The Rotary GS03900/21 Moonphase is an elegant dress watch that blends classic styling with practical functionality. Its tonneau-shaped stainless steel case, silver sunburst dial, and Roman numeral indices create a timeless, sophisticated aesthetic, while the moonphase indicator and day/date subdials add refined complexity.
Powered by a precise quartz movement with a new battery installed, this watch delivers accuracy and reliability suitable for both everyday wear and formal occasions. The blue hands and multifunction layout offer a stylish touch that elevates this piece within Rotary’s dress collection.
Founded in La Chaux-de-Fonds in 1895, Rotary has long been known for producing dependable, beautifully designed watches — and this moonphase model carries that tradition forward with charm and quality.
Specifications
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Brand: Rotary
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Model: GS03900/21
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Movement: Quartz (new battery installed)
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Case Size: Approx. 35mm x 45mm
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Case Material: Stainless steel
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Dial: Silver sunburst with Roman numerals & blue hands
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Functions: Moonphase, day & date subdials
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Crystal: Mineral
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Strap: Black genuine leather with signed Rotary buckle
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Water Resistance: 30m (3ATM)
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Display: Multifunction analog
Condition
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Great overall condition and fully working
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Minor case wear visible only in certain lighting
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Crystal clean; dial in excellent condition
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Leather strap shows wear but remains fully usable
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Pre-owned water resistance not guaranteed
Included
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Rotary GS03900/21 Moonphase watch
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FREE CM Timepieces Travel Case

Why Choose Us?
CM Timepieces was founded in Glasgow out of a genuine passion for watches and a belief that quality timepieces should be accessible to everyone. What began as a small independent venture quickly grew into a trusted business, built on honesty, fair pricing, and a dedication to customer satisfaction.
In less than 2 years, we’ve proudly earned over 400 five-star reviews across all platforms — a reflection of our commitment to delivering both exceptional products and outstanding service. Every watch we source is chosen with care, fully authenticated, and presented at a fair price, so you can buy with complete confidence.
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✨ Authenticity Guaranteed – Every timepiece is carefully inspected, fully authenticated, and sold with confidence.
💎 Exceptional Quality – We source only watches in great condition and fully working, ensuring lasting value.
💷 Fair Prices – By cutting out unnecessary markups, we offer luxury and vintage pieces at prices you can trust.
⭐ Trusted by Hundreds – Over 400 five-star reviews in just 1.5 years, built on honesty and reliability.
📦 Fast & Reliable Delivery – Secure, well-packaged, and delivered swiftly to your door.