Vintage Seiko "Reverso" The Blackdiamond Collection V400-0420 Reversible Watch
¥80,000
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Seiko
Vintage Seiko "Reverso" The Blackdiamond Collection V400-0420 Reversible Watch
¥80,000
Free tracked shipping. Ships within 2 to 8 business days
Import duties/VAT collected by the carrier on delivery.
Import duties and customs fees are not included and will be collected by the carrier upon delivery, except for shipments to the USA and select EU countries, where these fees are included at checkout.
OUR SHOP · UENO, TOKYO
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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
- Roman numeral dial vs. minimalist noir dial for dual styling
- From the collectible Blackdiamond Collection – known for its quirky and uncommon designs
Product File
Brand: Seiko
Product: Wristwatch
Collection: Vintage
Movement: Quartz
Display: Analog
Specifications
BrandSeiko
Model"Reverso" The Blackdiamond Collection V400-0420 Reversible
Country of OriginJapan
Case
MaterialStainless Steel (Two-Tone, Gold-Tone Bezel)
Case OriginJapan
Band
MaterialLeather
Band OriginJapan
Movement
TypeQuartz — Caliber V400
Movement OriginJapan
Battery TypeSR516SW silver oxide battery
We ship worldwide
We ship worldwide
We ship to all major destinations globally, this includes North America, South America, Europe, The Middle East, Everywhere in Asia, Australia, new Zealand etc
Brand new with box and papers
Brand new with box and papers
All our products are brand new with box and papers unless stated otherwise! For example, our vintage section are not brand new.
Pre order ship on release date
Pre order ship on release date
Pre-order items, which will ship according to the release date stated below.Processing time does not include shipping time.
About Import Duties, Taxes, and Other Levies
About Import Duties, Taxes, and Other Levies
Customs, Duties & Taxes
USA and Europe (prepaid at checkout): for orders shipped to the USA, France, Monaco, Andorra, Italy, Malta, the Netherlands, Slovakia, Denmark and Sweden, duties and import taxes (including VAT for European orders) are calculated and collected at checkout. They are shown as separate lines before you pay, so you won’t be charged anything extra on delivery.
All other countries: import duties, taxes, tariffs and customs fees are not included in the item price or shipping cost. These charges are the buyer’s responsibility, and The Japanese Factory is not responsible for them. They are set by your country and collected by the carrier or customs on delivery. Please check with your local customs office before you order. See our Shipping Policy for details.
About down payments
About down payments
You can pay in full, or secure your item with a 50% deposit. There are two ways to pay the remaining balance:
- In-stock items: pay 50% at checkout and the remaining 50% 30 days later.
- Pre-order items: pay 50% at checkout and the remaining 50% when your item is ready to ship. Your order will not be dispatched until the balance is paid in full.
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