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November 14, 2025•By Product API Team•Watch

Building a Watch API with The Product API: A Complete Guide

Create a specialized Watch Product API with movement types, case materials, water resistance, and special features. Perfect for watch marketplaces, collectors, and timepiece retailers.

Introduction to Watches

Watches are timeless accessories that combine functionality with style, ranging from luxury timepieces to smartwatches with advanced features. Whether you're a watch enthusiast collecting timepieces, a developer building a watch marketplace, or a retailer managing inventory, having access to structured watch product data is essential.

Imagine being able to search for watches and instantly get detailed information about each timepiece - from movement type to case material, from water resistance to special features. This is exactly what a specialized Watch Product API can provide.

What Makes a Watch API Special?

A Watch Product API goes beyond basic product listings. It understands the unique characteristics that matter to watch buyers:

  • Movement Type: Quartz, mechanical, automatic, or solar-powered
  • Case Specifications: Material, diameter, and thickness
  • Water Resistance: Depth rating for water activities
  • Band Material: Leather, metal, rubber, fabric, or ceramic
  • Special Features: Chronograph, GMT, moon phase, smart features, and more
  • Watch Type: Analog, digital, smartwatch, or hybrid
  • Brand Heritage: Luxury, fashion, sports, or smartwatch brands

With this structured data, you can build powerful features like filtering by movement type, comparing water resistance ratings, or recommending watches based on lifestyle needs.

Try It Out: Search for Watches

Use the search bar below to search for watches. Try queries like "Rolex Submariner", "Apple Watch Series 9", or "Seiko automatic diver". The results will include detailed specifications automatically extracted from product information across the web.

Try the Watch API

Search for watchs and see detailed specifications automatically extracted from product information.

How It Works: Technical Implementation

Now that you've seen the API in action, let's dive into how it's implemented. This specialized Watch API is built on top of The Product API which is an AI-based product search API that works with any product and any type of query. It responds with structured JSON and supports custom structured responses, allowing you to build specialized APIs for any product category.

The Product API's powerful custom_data_schema feature allows you to define additional structured fields specific to your product category, enabling you to create category-specific APIs like this Watch API. For more details on how the API works, see the full documentation.

Understanding APIs for Product Data

An API (Application Programming Interface) enables different software applications to communicate. For product data:

  • Input: You send a search query (e.g., "watch Rolex Submariner")
  • Processing: The API searches across multiple sources and uses AI to extract relevant information
  • Output: You receive structured product data in JSON format

The flexibility of a product API means you can customize it for specific categories by defining additional data fields through JSON Schema.

Creating a Watch-Specific JSON Schema to pass as custom_data_schema of search request

Here's the JSON Schema we use for watch products:

{
  "type": "object",
  "properties": {
    "watch_type": {
      "type": "string",
      "enum": ["analog", "digital", "smartwatch", "hybrid"],
      "description": "Type of watch display"
    },
    "movement_type": {
      "type": "string",
      "enum": ["quartz", "mechanical", "automatic", "solar", "smart"],
      "description": "Movement mechanism type"
    },
    "case_material": {
      "type": "string",
      "description": "Case material (e.g., 'stainless steel', 'titanium', 'gold', 'ceramic')"
    },
    "case_diameter": {
      "type": "string",
      "description": "Case diameter in millimeters (e.g., '40mm', '42mm')"
    },
    "case_thickness": {
      "type": "string",
      "description": "Case thickness in millimeters"
    },
    "water_resistance": {
      "type": "string",
      "description": "Water resistance rating (e.g., '50m', '100m', '200m', '300m')"
    },
    "band_material": {
      "type": "string",
      "description": "Band/strap material (e.g., 'leather', 'stainless steel', 'rubber', 'fabric')"
    },
    "band_width": {
      "type": "string",
      "description": "Band width in millimeters"
    },
    "features": {
      "type": "array",
      "items": { "type": "string" },
      "description": "Special features (e.g., ['chronograph', 'GMT', 'moon phase', 'heart rate monitor', 'GPS'])"
    },
    "crystal_type": {
      "type": "string",
      "description": "Crystal type (e.g., 'sapphire', 'mineral', 'acrylic')"
    },
    "power_reserve": {
      "type": "string",
      "description": "Power reserve for mechanical/automatic watches (e.g., '42 hours', '80 hours')"
    },
    "price_range": {
      "type": "string",
      "description": "Price range category (budget, mid-range, luxury, premium)"
    }
  },
  "required": ["watch_type", "movement_type", "case_material"]
}

Using the Category Prefix

When searching for watches, we prefix the search query with "watch" to help the AI understand the context and return more relevant results.

Example Search Queries:

  • watch Rolex Submariner
  • watch Apple Watch Series 9
  • watch Seiko automatic diver
  • watch Omega Speedmaster

The prefix "watch" ensures the API understands you're looking specifically for timepiece products and not other items.

Complete Example: Making a Request

Here's how to make a request to The Product API with a watch-specific schema. For complete API reference including authentication, endpoints, and all parameters, see the documentation:

const response = await fetch('https://api.example.com/api?search=watch%20Rolex%20Submariner&with_image=true', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    custom_data_schema: {
      type: "object",
      properties: {
        watch_type: {
          type: "string",
          enum: ["analog", "digital", "smartwatch", "hybrid"],
          description: "Type of watch display"
        },
        movement_type: {
          type: "string",
          enum: ["quartz", "mechanical", "automatic", "solar", "smart"],
          description: "Movement mechanism type"
        },
        case_material: {
          type: "string",
          description: "Case material"
        },
        case_diameter: {
          type: "string",
          description: "Case diameter in millimeters"
        },
        case_thickness: {
          type: "string",
          description: "Case thickness in millimeters"
        },
        water_resistance: {
          type: "string",
          description: "Water resistance rating"
        },
        band_material: {
          type: "string",
          description: "Band/strap material"
        },
        band_width: {
          type: "string",
          description: "Band width in millimeters"
        },
        features: {
          type: "array",
          items: { type: "string" },
          description: "Special features"
        },
        crystal_type: {
          type: "string",
          description: "Crystal type"
        },
        power_reserve: {
          type: "string",
          description: "Power reserve for mechanical/automatic watches"
        },
        price_range: {
          type: "string",
          description: "Price range category"
        }
      },
      required: ["watch_type", "movement_type", "case_material"]
    }
  })
});

const data = await response.json();
console.log(data.products);

Expected Response

The API will return products with standard fields plus your custom custom_data field:

{
  "status": "success",
  "products": [
    {
      "name": "Rolex Submariner Date",
      "description": "The Rolex Submariner Date is a legendary diving watch...",
      "brand": "Rolex",
      "image": "https://example.com/image.jpg",
      "custom_data": {
        "watch_type": "analog",
        "movement_type": "automatic",
        "case_material": "stainless steel",
        "case_diameter": "41mm",
        "case_thickness": "12.5mm",
        "water_resistance": "300m",
        "band_material": "stainless steel",
        "band_width": "20mm",
        "features": ["date", "rotating bezel", "luminous markers"],
        "crystal_type": "sapphire",
        "power_reserve": "48 hours",
        "price_range": "luxury"
      }
    }
  ]
}

Conclusion

By combining the flexible Product API with a watch-specific JSON Schema, you can create a powerful, specialized API for watch products. The key is:

  1. Define your schema based on what watch data matters to your application
  2. Use category prefixes in search queries for better context
  3. Leverage the custom_data field to build rich, category-specific features

The same approach works for any product category - you just need to define the right schema for your needs!

Ready to get started? Create your own product API on The Product API and start building your own category-specific APIs today!

Ready to build your own category-specific API? Check out our other API preset guides for guitars, smartphones, drills, cars, and more!