Seiko
Vintage Seiko "Reverso" The Blackdiamond Collection V400-0420 Reversible Watch
Vintage Seiko "Reverso" The Blackdiamond Collection V400-0420 Reversible Watch
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📌 Please read the full listing before purchasing.
📌 Please read the full listing before purchasing.
We kindly ask all customers to read the full product listing carefully before placing an order. This ensures you are aware of important details such as specifications, release dates, and policies.
🚫 Orders cannot be cancelled once placed.
🚫 Orders cannot be cancelled once placed.
Once an order is placed, it cannot be cancelled. This is because we commit to our suppliers immediately to secure your item. Please review your order carefully before completing checkout.
⏳ Processing time: 5–10 business days (pre-orders ship on release date).
⏳ Processing time: 5–10 business days (pre-orders ship on release date).
Orders are processed within 5–10 business days (excluding weekends and holidays). This does not apply to pre-order items, which will ship according to the release date stated below. Processing time does not include shipping time.
💰 Import duties/taxes/tariffs are the buyer’s responsibility.
💰 Import duties/taxes/tariffs are the buyer’s responsibility.
Import duties, taxes, tariffs, and fees are not included in the item price or shipping cost. These charges are the buyer’s responsibility and vary by country. Please check with your local customs office for details before purchasing.
💳 5% discount for Wise bank transfer — contact us for a link.
💳 5% discount for Wise bank transfer — contact us for a link.
We offer a 5% discount for payments made via Wise, a secure global bank transfer service. Contact us if you’d like to receive a Wise payment link for your order.
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A rare design from Seiko’s eccentric archives, this reversible double-dial watch from The Blackdiamond Collection is a playful yet elegant statement of duality. Powered by the minimalist V400 quartz movement, it strips watchmaking down to its essentials—then flips expectations entirely.
On one side, a classic Roman numeral dial in white evokes a refined, almost neoclassical charm. On the other, a sleek, matte black face with polished stick markers and a diamond-shaped hour hand adds a bold, contemporary edge. The rotating case lets you choose your mood, whether formal or avant-garde.
Crafted with a two-tone case—brushed steel paired with a gold-tone bezel—and paired with a black leather strap, this piece balances quirk and class. It’s a prime example of why The Blackdiamond Collection has become a cult favorite: each model in the series brings a unique twist to Seiko’s precision watchmaking.
Key features:
- Reversible case with dual dials – dress up or down with a flip
- Seiko V400 quartz movement – clean, reliable 2-hand timekeeping
- Roman numeral dial vs. minimalist noir dial for dual styling
- Battery life: Up to 3 years (SR516SW)
- Stainless steel case with gold-tone bezel on one side
- From the collectible Blackdiamond Collection – known for its quirky and uncommon designs
Product File
Brand: Seiko
Product: Wristwatch
Collection: Vintage
Movement: Quartz
Display: Analog
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