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Sold outSEIKO 140N50LN01 Hardlex Crystal 140N50LN01
Sold outSEIKO 140N51SV01 Sapphire Crystal CZZ810J1 - 1E50-0A49
SEIKO 150A02J20A Hardlex Crystal SXF251J1 - V401-0500
SEIKO 150A02JB0A Hardlex Crystal SUJ521P1 - 1N00-0ER0
SEIKO 150A02JN02 Hardlex Crystal SXUB82J1 - 1400-1190
SEIKO 150A02JN03 Hardlex Crystal 150A02JN03
SEIKO 150A02L20A Hardlex Crystal PPG893P1 - V810-1100
SEIKO 150A02LN03 Hardlex Crystal SXG869P1 - 1N01-0J20
SEIKO 150A11JN02 Hardlex Crystal 150A11JN02
SEIKO 150A11JN03 Hardlex Crystal SWFX058 - 1F20-0110
SEIKO 150A18JN02 Hardlex Crystal SUJ620P9 - 1N00-0FZ0
Sold outSEIKO 150A20SN02 Sapphire Crystal SSQR005 - V111-0CF0
SEIKO 150A58JB0A Hardlex Crystal SUJB89P1 - 1N00-0JW0
SEIKO 150A58JN02 Hardlex Crystal SUJB86P1 - 1N00-0JV0
SEIKO 150AA0JN02 Hardlex Crystal FADX986 - 1N01-0JH0
Sold outSEIKO 150N24SN01 Sapphire Crystal 150N24SN01
SEIKO 150N26HJ01 Hardlex Crystal CZZ074J1 - 1E50-0109
SEIKO 150N51LN00 Hardlex Crystal PRYB19X - V400-X202
SEIKO 150N57JN01 Hardlex Crystal 150N57JN01
SEIKO 150N53JN00 Hardlex Crystal 150N53JN00
SEIKO 150N63LN01 Hardlex Crystal 150N63LN01
SEIKO 150W02JN01 Hardlex Crystal SWKX002 - 1F21-0A20
SEIKO 150W09JN01 Hardlex Crystal 150W09JN01
SEIKO 150W09JM01 Hardlex Crystal SXN061P1 - 4N00-0051
Sold outSEIKO 150W50GN00 Hardlex Crystal PED166J1 - Y580-0059
Sold outSEIKO 155A02J20A Hardlex Crystal SWX005P1 - V400-0358
Sold outSEIKO 155A02J30A Hardlex Crystal SXJ189J1 - 1N00-0B30
Sold outSEIKO 155A02JN02 Hardlex Crystal SYL074J1 - 1F20-0A30
Sold outSEIKO 155A02JN03 Hardlex Crystal V401-0250
Sold outSEIKO 155A02LN03 Hardlex Crystal 1N01-0BE0
SEIKO 155A10JZ0A Hardlex Crystal SXJN67P1 - 1N00-1C50
SEIKO 155A17JN02 Hardlex Crystal SUJB35J1 - 1N00-0JN0
SEIKO 155A18JN02 Hardlex Crystal SUJD57P1 - 1N00-0LR0
SEIKO 155A20LN03 Hardlex Crystal REG30AX9 - 1N00-X009
SEIKO 155AA0JN02 Hardlex Crystal SUJ706P9 - 1N00-0GM0
Sold outSEIKO 155N00JM01 Hardlex Crystal 1N00-0B30
Sold outSEIKO 155N05GC Hardlex Crystal 155N05GC
Sold outSEIKO 155N05GC00 Hardlex Crystal 155N05GC00
Sold outSEIKO 155N11SN00 Sapphire Crystal CXUX06J1 - 1400-0889
Sold outSEIKO 155N15LN00 Hardlex Crystal 155N15LN00
Sold outSEIKO 155N17JM01 Hardlex Crystal V230-0120
Sold outSEIKO 155N17JN00 Hardlex Crystal 2C20-0020
Sold outSEIKO 155N27LN01 Hardlex Crystal V232-0030
Sold outSEIKO 155N29LN01 Hardlex Crystal 155N29LN01
Sold outSEIKO 155N50JN01 Hardlex Crystal 1F20-0A30
Sold outSEIKO 155N52LN01 Hardlex Crystal PED344P0 - Y580-0200
Sold outSEIKO 155W025SV01 Sapphire Crystal 155W025SV01
Sold outSEIKO 155W02SV01 Sapphire Crystal CZZ056J1 - 1E50-0089

Genuine Watch Parts & Components for Seiko, Citizen, and More – Available at WatchPlaza

Welcome to WatchPlaza, your trusted source for authentic replacement watch parts for Seiko, Citizen, and other leading watch brands. Whether you're a professional watchmaker, a collector, or a DIY enthusiast, you'll find a vast and carefully curated selection of genuine parts to repair, restore your watch with confidence.

🔧 What You'll Find in Our Watch Parts Collection

We stock thousands of new and original spare parts, with a primary focus on Seiko watches. Our catalog includes both modern and vintage components for a wide range of models, including mechanical, automatic, and quartz timepieces.

You can shop the following categories:

  • Dials – Classic, modern, diver-style, and limited edition watch dials

  • Bezels & Lunettes – Including complete bezel assemblies and bezel inserts

  • Hands (Pointers) – Hour, minute, and second hands in various designs and lume types

  • Chapter Rings & Dial Rings – For precise alignment and aesthetic enhancement

  • Watch Cases – Complete case sets or individual case components

  • Crowns & Stems – For setting time and winding the movement

  • Crystals – Flat, domed, or curved glass in sapphire, Hardlex, or mineral

  • Movements – Complete calibers and individual components (e.g., rotors, bridges, wheels)

  • Shrouds / Case Protectors – Often used in diver or sports models

  • Click Springs & Ratchets – Key parts for rotating bezels and mechanical functions

  • Gaskets / O-Rings – Ensure water resistance and case sealing

  • Pins & Spring Bars – To attach straps or bracelets securely

  • Screws, Pushers, Battery Covers – Small but essential components for fine repairs

  • Watch Straps & Bracelets – Leather, rubber, steel, and titanium options

We’re continuously adding new stock, so be sure to check back often for updates.


🧭 Understanding Watch Parts: The Anatomy of a Timepiece

Every wristwatch, no matter how simple or advanced, consists of multiple interdependent components. Here's a breakdown of the most essential ones:

1. Movement / Caliber

The movement is the internal engine of the watch, responsible for keeping accurate time and powering additional features. Movements may be:

  • Quartz – Battery-powered and extremely accurate

  • Mechanical – Powered by a mainspring and regulated by a balance wheel

  • Automatic – Self-winding via the wearer's motion

  • Spring Drive (Seiko) – A unique hybrid combining quartz regulation with mechanical power

2. Dial (Watch Face)

The dial shows the time and often includes:

  • Hour markers, subdials, and date windows

  • Decorative elements such as sunburst finishes, textures, or applied indices

3. Hands

Available in various shapes and finishes (sword, dauphine, baton, etc.), watch hands indicate the time and can reflect the design era or type (diver, dress, pilot).

4. Case

The case protects the movement and other internal components. Materials vary from:

  • Stainless steel

  • Titanium

  • Ceramic

  • Plastic or resin (in sport watches)

5. Crystal

The transparent cover that protects the dial. Options include:

  • Hardlex – A hardened mineral crystal developed by Seiko

  • Sapphire – Extremely scratch-resistant

  • Acrylic – Lightweight and shatter-resistant

6. Crown

Located on the side of the case, the crown allows users to wind the watch, set the time, and, in some models, adjust complications.

7. Case Back & Gaskets

Often screwed or snapped on, the case back includes gaskets to ensure water resistance. Transparent case backs reveal the movement in display models.

8. Straps / Bracelets

Connect the watch to your wrist. Common materials include:

  • Leather (smooth, crocodile, suede)

  • Stainless steel (Oyster, Jubilee, mesh)

  • Rubber or silicone (ideal for sports and diving)

  • NATO and Zulu (durable, military-style options)


🕰️ Most Essential Watch Parts for Functionality

While all parts are important, the following are particularly crucial for a functioning, wearable watch:

  • Movement / Caliber – The heart of the watch

  • Dial & Hands – For time display and aesthetic identity

  • Crystal – Protects the dial and hands

  • Crown – For manual control of time and date

  • Case – The housing that secures everything

  • Strap or Bracelet – Keeps the watch on your wrist


📦 Where to Buy Watch Parts

1. Online Retailers

Reputable sites like WatchPlaza.com specialize in brand-specific watch parts. We offer a secure shopping experience, fast worldwide shipping, and verified original parts.

2. Watchmakers & Repair Shops

Watch repair professionals often have access to rare or discontinued parts, especially for vintage models.

3. Authorized Brand Service Centers

If you own a luxury or high-end model, always go through the brand's authorized service center to preserve authenticity and warranty.

4. Auction Platforms (with caution)

Websites like eBay may offer rare components, but always verify the seller’s reputation and part authenticity.

5. Salvage or Vintage Markets

Useful for finding hard-to-source or discontinued components, but be wary of quality and condition. 


🔍 What You Can Get at WatchPlaza

At WatchPlaza.com, we focus heavily on Seiko parts, offering everything from:

  • 6R15, 4R35, NH35, NE15 movements

  • SARB, SKX, Sumo, Turtle, Samurai and other iconic model components

  • Bezel inserts, chapter rings, crown tubes, movement spacers, and more

We also stock:

  • Citizen parts, including Eco-Drive movements, dials, crystals, and crowns

  • Select parts for Breil, Pulsar, Lorus, Diesel, Fossil, Armani, Casio, Burberry, DKNY, Zodiac, Michael Kors, Guess, and others


📩 Can’t Find What You’re Looking For?

If a specific part is not listed, feel free to contact us directly with a product request. Our team will do its best to locate or suggest a suitable alternative from our extensive inventory.