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SEIKO 310W37LN01 Hardlex Crystal V011-0020
SEIKO 310W39HN01 Hardlex Crystal SEN023J1 - 6F24-7010
SEIKO 310W42GN00 Hardlex Crystal 310W42GN00
SEIKO 310W46GN00 Hardlex Crystal 6309-8660
Sold outSEIKO 310W52GN00 Hardlex Crystal 6309-7080
SEIKO 310W54GN00 Hardlex Crystal PHM021J1 - V348-7010
Sold outSEIKO 310W56GN00 Hardlex Crystal 8223-5270
SEIKO 310W62GN00 Hardlex Crystal SDE917K - 6309-8660
SEIKO 310W62JN01 Hardlex Crystal 7A38-7180
SEIKO 310W70JK01 Hardlex Crystal S23174J1 - 7A34-7000
SEIKO 310W74JM01 Hardlex Crystal SDY002J1 - 5S21-7A10
SEIKO 310W74JM02 Hardlex Crystal SDY001J1 - 5S21-7A20
SEIKO 310W74JN01 Hardlex Crystal SAPR002 - 5P31-9A00
SEIKO 310W76HN01 Hardlex Crystal SEC009J1 - 5H26-7A10
SEIKO 310W78HN01 Hardlex Crystal SGM002J1 - 5T12-7A20
SEIKO 310W78JN01 Hardlex Crystal SGT278P1 - 5M22-6B30
SEIKO 310W80HN00 Hardlex Crystal 310W80HN00
SEIKO 310W80HN01 Hardlex Crystal SEH001J1 - 7T34-7A10
SEIKO 310X13S20A Sapphire Crystal SPB109J1 - 6R15-05B0
SEIKO 310X13SN02 Sapphire Crystal SPB247J1 - 6R35-01N0
SEIKO 310X15SN02 Sapphire Crystal SPB175J1 - 6R35-00S0
SEIKO 310XA0JN03 Hardlex Crystal PF3587X1 - 7T62-X086
Sold outSEIKO 310XA2HN02 Hardlex Crystal SNAA01P9 - 7T62-0GF0
SEIKO 310XA3SN03 Sapphire Crystal SKZ257K1 - 7S36-02X0
SEIKO 310XA5LN03 Hardlex Crystal SRP213J1 - 4R36-00N0
Sold outSEIKO 310XA7HN03 Hardlex Crystal SRP493J1 - 4R36-02Z0
SEIKO 310XA9HN02 Hardlex Crystal SRPC96K1 - 4R36-06P0
SEIKO 310XB3SB03 Sapphire Crystal SRPE35J1 - 4R35-03W0
Sold outSEIKO 315A01SN01 Sapphire Crystal SAPM002J - 8J41-0010
SEIKO 315P17HN02 Hardlex Crystal SKXA33K1 - 7S26-01C0
SEIKO 315P25HN02 Hardlex Crystal SZSB003 - 4R35-03B0
SEIKO 315P25JN02 Hardlex Crystal SRPF60K1 - 4R36-09R0
SEIKO 315P33S20A Sapphire Crystal SDKS027 - 6R51-00B0
SEIKO 315PA1JN01 Hardlex Crystal SBSA001 - 4R36-07G0
SEIKO 315PA9JB0A Hardlex Crystal SBSA259 - 4R36-16D0
Sold outSEIKO 315PB1JN02 Hardlex Crystal SBSA303 - 4R36-17K0
SEIKO 315W20GN00 Hardlex Crystal SAA025J1 - 7A38-7050
SEIKO 315W22GN00 Hardlex Crystal SPV016J0 - 7A48-7030
SEIKO 315W26HK01 Hardlex Crystal SCZ311J1 - 5Y23-6150
SEIKO 315W26SK01 Sapphire Crystal SBBP001 - 7T34-6A20
SEIKO 315XA5JN01 Hardlex Crystal SBSC001 - 4R34-00A0
Sold outSEIKO 320A02SN02 Sapphire Crystal SKK541P1 - 7N32-0CV0
Sold outSEIKO 320A03JN02 Hardlex Crystal 5Y66-0AB0
Sold outSEIKO 320A03LN03 Hardlex Crystal PRS359P1 - V501-0A50
SEIKO 320A03SN02 Sapphire Crystal SRK015J1 - 6G28-00C0
Sold outSEIKO 320A04JN02 Hardlex Crystal SRL003P1 - 6G34-00B0
SEIKO 320A06JR02 Hardlex Crystal SGE180J1 - 7N42-0A10
SEIKO 320A10JB0B Hardlex Crystal SKK285J1 - 7N32-0AW0

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.