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SEIKO 320PA4JN02 Hardlex Crystal SNA414P1 - 7T62-0EB0
SEIKO 320PA7JN03 Hardlex Crystal SBSA111 - 4R36-10A0
SEIKO 320PA8HN02 Hardlex Crystal FBNW999 - V145-0BC0
SEIKO 320PA9JN03 Hardlex Crystal SRP481K1 - 4R36-02T0
SEIKO 320PB0LN03 Hardlex Crystal PAR097X1 - YT57-X027
Sold outSEIKO 320PB1SB0A Sapphire Crystal SRPH55J8 - 4R36-11W0
SEIKO 320PC0JN02 Hardlex Crystal SGEE49P1 - 7N42-0EF0
SEIKO 320PC2HN02 Hardlex Crystal SKA383J2 - 5M62-0BR0
SEIKO 320PC4HN02 Hardlex Crystal SNDA13J1 - 7T92-0JG0
Sold outSEIKO 320PC4JN02 Hardlex Crystal 7T92-0LK0
SEIKO 320PC4SB0B Sapphire Crystal SNDA59P1 - 7T92-0JT0
SEIKO 320PC8SB0B Sapphire Crystal SKA511P1 - 5M62-0CS0
SEIKO 320PD2JN02 Hardlex Crystal SCEB009 - 7T92-0NR0
SEIKO 320PX5HN03 Hardlex Crystal SRP441K1 - 4R35-00F0
SEIKO 320PX5LN03 Hardlex Crystal SRPB79J1 - 4R35-02C0
SEIKO 320PX5JN02 Hardlex Crystal SNG093P1 - 5J32-0AX0
SEIKO 320PX5SB0B Sapphire Crystal SUN019J1 - 5M85-0AB0
SEIKO 320PX5SN02 Sapphire Crystal SARB013 - 6R15-00E0
SEIKO 320PX6HN02 Hardlex Crystal SRP773J1 - 4R36-04Y0
SEIKO 320PX6HN03 Hardlex Crystal SRPB09J1 - 4R35-01S0
SEIKO 320PX6LN03 Hardlex Crystal SRP357J1 - 4R36-01P0
SEIKO 320PX7JN02 Hardlex Crystal 5M65-0AB0
SEIKO 320PX7JN03 Hardlex Crystal SUN005P9 - 5M65-0AB0
SEIKO 320W15GN Hardlex Crystal 5106-8020
SEIKO 320W15GN00 Hardlex Crystal 5106-8020
SEIKO 320W40GN00 Hardlex Crystal 7A28-7020
SEIKO 320W42GA00 Hardlex Crystal 7A48-7009
SEIKO 320W42GN00 Hardlex Crystal 7A28-6000
SEIKO 320W52JK01 Hardlex Crystal SEL028J1 - 5T52-7A10
SEIKO 320WP0LU04 Hardlex Crystal PMY029P1 - V336-6030
SEIKO 320X04HN02 Hardlex Crystal SRPC95J1 - 4R36-06T0
SEIKO 320X05S20A Sapphire Crystal SBDC091 - 6R35-00E0
SEIKO 320X06JV0A Hardlex Crystal SEL084P0 - 5T52-6B39
Sold outSEIKO 320X06JV0D Hardlex Crystal SEL077P1 - 5T52-6B30
SEIKO 320X06JV0E Hardlex Crystal SEL082J1 - 5T52-6B30
Sold outSEIKO 320X07S20A Sapphire Crystal SBDC207 - 6R55-00P0
SEIKO 320XA0HN02 Hardlex Crystal SBDJ017 - V157-0BT0
Sold outSEIKO 320XA3HN02 Hardlex Crystal SNQ037P1 - 6A32-00E0
SEIKO 320XB7SB0A Sapphire Crystal SRPE03J1 - 4R36-06Z0
Sold outSEIKO 325W16GA00 Hardlex Crystal 325W16GA00
Sold outSEIKO 325W18GN00 Hardlex Crystal SSAY038 - 7A28-7050
SEIKO 325W22SN00 Sapphire Crystal SSJS018 - 7A38-7030
Sold outSEIKO 325W26HB0A Hardlex Crystal S60585J1 - 7549-7010
SEIKO 325W62SB0A Sapphire Crystal S23629J1 - 7C46-0AN0
SEIKO 330A02JB0C Hardlex Crystal SHL012J1 - 5Y88-6010
SEIKO 330A02JB0D Hardlex Crystal SHL010J1 - 5Y88-601A
SEIKO 330A02JV0B Hardlex Crystal SHL009J1 - 5Y88-601A
Sold outSEIKO 330A02SN02 Sapphire Crystal 330A02SN02

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.