---
product_id: 56255772
title: "Women Men Math Formula Equation Dial Leather Quartz Watch Student Watches (Black)"
brand: "vavna"
price: "HK$137"
currency: HKD
in_stock: true
reviews_count: 8
category: "Vavna"
url: https://www.desertcart.hk/products/56255772-women-men-math-formula-equation-dial-leather-quartz-watch-student
store_origin: HK
region: Hong Kong
---

# 1.45" stainless steel case 30m water resistant Unique math formula dial Women Men Math Formula Equation Dial Leather Quartz Watch Student Watches (Black)

**Brand:** vavna
**Price:** HK$137
**Availability:** ✅ In Stock

## Summary

> 🕒 Wear your intellect on your wrist—where style meets smarts!

## Quick Answers

- **What is this?** Women Men Math Formula Equation Dial Leather Quartz Watch Student Watches (Black) by vavna
- **How much does it cost?** HK$137 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/56255772-women-men-math-formula-equation-dial-leather-quartz-watch-student)

## Best For

- vavna enthusiasts

## Why This Product

- Trusted vavna brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Everyday Ready:** Water resistant up to 30 meters, so you stay stylish rain or shine.
- • **Durable Elegance:** Protective mineral crystal dial window guards against scratches while maintaining crystal-clear visibility.
- • **Timeless Precision:** Quartz movement ensures accurate timekeeping for your busy schedule.
- • **Conversation Starter:** Sport a watch that doubles as a clever decor piece—ideal for students, teachers, and science lovers alike.
- • **Smart Style Statement:** Unisex black leather band paired with a sleek formula-printed dial—perfect for the intellectually chic.

## Overview

The Vavna Math Formula Equation Dial Leather Quartz Watch combines a 1.45-inch stainless steel case with a unique math-themed dial and durable black leather strap. Powered by precise quartz movement and protected by a mineral crystal window, it offers 30 meters of water resistance. Designed for both men and women, this watch is a perfect blend of fashion and function, ideal for students, educators, and professionals who want to showcase their love for science and style.

## Description

Buy Vavna Women Men Math Formula Equation Dial Leather Quartz Watch Student Watches (Black) and other Wrist Watches at desertcart.com. Our wide selection is eligible for free shipping and free returns.

Review: Awesome watch - Why did you pick this product vs others?: I love this watch as a scientist it makes me lough
Review: Cute, but cheaply made - I bought this as a gift for a math teacher in the family. He loved it. It is unique and really cute. But it was also obviously cheaply made. So I would recommend for a funny gift or a "happy" but don't be expecting a high-quality watch.

## Features

- Made of high quality soft leather.
- Fashion stylish formula print dial, suit for unisex.
- Dial:1.45"
- Quartz movement with analog display.Protective mineral crystal dial window
- Not only a watch, but also a decor to color life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071JLRGN5 |
| ASIN  | B071JLRGN5 |
| Age Range Description | Adult |
| Band Color | Black |
| Band Length | 22 Centimeters |
| Band Material Type | Leather |
| Band Width | 0.75 Inches |
| Bands | 1 |
| Batteries  | 1 AA batteries required. (included) |
| Best Sellers Rank | #555,750 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1,559 in Women's Wrist Watches |
| Brand Name | Vavna |
| Case Diameter | 1.45 Inches |
| Case Material Type | Stainless Steel |
| Case Thickness | 0.31 Inches |
| Character | Fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | Mineral |
| Customer Reviews | 4.0 4.0 out of 5 stars (51) |
| Date First Available  | May 24, 2017 |
| Department  | boys |
| Dial Color | Black |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Crosshair |
| Is Discontinued By Manufacturer  | No |
| Item model number  | Vavna605 |
| Manufacturer | Vavna |
| Manufacturer  | Vavna |
| Model Name | Vavna Women Men Math Formula Equation Dial Leather Quartz Watch |
| Model Number | Vavna605 |
| Package Dimensions  | 9.72 x 1.97 x 0.51 inches; 1.13 ounces |
| Pattern | Formula |
| Power Source | Battery Powered |
| Shape | Round |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Style Name | Quartz Watch |
| UPC | 619956062545 |
| Unit Count | 1 Count |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 30 Meters |
| Water Resistance Level | Water Resistant |

## Images

![Women Men Math Formula Equation Dial Leather Quartz Watch Student Watches (Black) - Image 1](https://m.media-amazon.com/images/I/712PTqf5+DL.jpg)

## Questions & Answers

**Q: Am I the only one bothered by the fact that π-. 14 is not 3? Or that the answer to the quadratic at 7 is not only 7 but also - 6?**
A: The answer to the quadratic will only be used as 7 not -6 as time is only positive :)

**Q: Is this watch waterproof?**
A: No, this watch is not waterproof. It may be water-resistant, like if you get it wet while washing your hands or get stuck out in the rain, but I don't think it would withstand being submerged.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome watch
*by R***N on June 25, 2025*

Why did you pick this product vs others?: I love this watch as a scientist it makes me lough

### ⭐⭐⭐ Cute, but cheaply made
*by L***E on April 3, 2019*

I bought this as a gift for a math teacher in the family. He loved it. It is unique and really cute. But it was also obviously cheaply made. So I would recommend for a funny gift or a "happy" but don't be expecting a high-quality watch.

### ⭐⭐⭐⭐⭐ Playfully gift for family members or friend
*by M***Y on November 13, 2019*

Birthday gift for hubby, He love math. Conversation piece, Cheap band😬 thats ok the watch is less then $10.00.

## Frequently Bought Together

- Vavna Women Men Math Formula Equation Dial Leather Quartz Watch Student Watches (Black)
- Vavna Wristwatches Women Men Math Formula Equation Dial Leather Quartz Watch Student Wristwatches (White)

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**Shop now:** [https://www.desertcart.hk/products/56255772-women-men-math-formula-equation-dial-leather-quartz-watch-student](https://www.desertcart.hk/products/56255772-women-men-math-formula-equation-dial-leather-quartz-watch-student)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-04*