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SEIKO 370PA1LN03 Hardlex Crystal SKS473J1 - 4T57-00E0
SEIKO 370P19HN02 Hardlex Crystal SILAAA01Y - VJ20-0110
SEIKO 370P15HN03 Hardlex Crystal FRAA0081 - 4206-D003
SEIKO 370P06SB0C Sapphire Crystal 370P06SB0C
SEIKO 370P06SB0B Sapphire Crystal 370P06SB0B
Sold outSEIKO 370AA8JN02 Hardlex Crystal SUR483J8 - 6N42-00M0
SEIKO 370AA6JN02 Hardlex Crystal SGEH07J1 - 7N42-0FZ0
SEIKO 370AA0LN03 Hardlex Crystal PK4001P1 - 1N8W-0AA0
SEIKO 275MDM10 Hardlex Crystal 275MDM10
SEIKO 330MS200 Hardlex Crystal 330MS200
Sold outSEIKO 320MS200 Hardlex Crystal 320MS200
Sold outSEIKO 320MS180 Hardlex Crystal 320MS180
SEIKO 315MS180 Hardlex Crystal 315MS180
SEIKO 325MS300 Hardlex Crystal 325MS300
Sold outSEIKO 325MS180 Hardlex Crystal PAR167X1 - YT57-X041
Sold outSEIKO 325MFH200 Hardlex Crystal
(0.0)
SEIKO 335MSM160 Hardlex Crystal 335MSM160
SEIKO 345MS250 Hardlex Crystal 345MS250
SEIKO 345MDM12 Hardlex Crystal 345MDM12
SEIKO 365V06GNS0 Hardlex Crystal WAV013J1 - 6138-3002
SEIKO 365MSM15 Hardlex Crystal 365MSM15
SEIKO 365MHF15 Hardlex Crystal 365MHF15
Sold outSEIKO 365MFH20 Hardlex Crystal 365MFH20
Sold outSEIKO 360PC8XN02 Hardlex Crystal SRPC73K1 - 4R36-06J0
SEIKO 360PC4JN02 Hardlex Crystal 360PC4JN02
SEIKO 360PC4HN02 Hardlex Crystal SNAF63P1 - 7T62-0LJ0
SEIKO 360PC0HN02 Hardlex Crystal SRP701J1 - 4R35-00P0
SEIKO 360PB9JN01 Hardlex Crystal SSB387P1 - 8T67-00N0
SEIKO 360PB8SB0B Sapphire Crystal SNAE95J1 - 7T62-0LA0
SEIKO 360PB7JN02 Hardlex Crystal SUR491J8 - 6N43-00E0
SEIKO 360PB5JN02 Hardlex Crystal SRPC85J1 - 4R35-02W0
SEIKO 360PB2JN02 Hardlex Crystal SNN221P1 - 7T94-0BH0
SEIKO 360PB1LN03 Hardlex Crystal SRP561K1 - 4R36-03M0
SEIKO 360PB0SB0B Sapphire Crystal SPC049P1 - 7T84-0AD0
Sold outSEIKO 360PA9LN03 Hardlex Crystal SNKM83J1 - 7S26-03Z0
Sold outSEIKO 360PA8JN02 Hardlex Crystal SUN029J1 - 5M85-0AC0
SEIKO 360PA7LN03 Hardlex Crystal SRPB25J1 - 4R36-06C0
SEIKO 360PA7HN03 Hardlex Crystal SUR019J1 - 6N76-00C0
SEIKO 360PA5JN03 Hardlex Crystal SRP025K1 - 4R15-00A0
Sold outSEIKO 360PA4HB0B Hardlex Crystal SSC629P9 - V192-0AB0
Sold outSEIKO 360PA3JN03 Hardlex Crystal SNQ087P1 - 6A32-00L0
Sold outSEIKO 360PA2SN02 Sapphire Crystal SRPB03J1 - 4R35-01R0
SEIKO 360PA2SB0B Sapphire Crystal SSC607J1 - V192-0AA0
SEIKO 360PA1JN03 Hardlex Crystal SNKF11K1 - 7S26-02Y0
SEIKO 360PA1HN03 Hardlex Crystal SNQ077P1 - 6A32-00K0
SEIKO 360P31S20A Sapphire Crystal SBER001 - 8A50-00A0
SEIKO 360P23SN02 Sapphire Crystal SRPC79J1 - 4R35-02S0
SEIKO 360P19HN02 Hardlex Crystal SSB221J1 - 8T63-00C0

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.