---
product_id: 731956557
title: "Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch"
brand: "seiko"
price: "6531.89 DT"
currency: TND
in_stock: true
category: "Seiko"
url: https://www.desertcart.tn/products/731956557-seiko-prospex-automatic-spb121j1-mens-wristwatch
store_origin: TN
region: Tunisia
---

# Sapphire Crystal Glass 20 ATM Water Resistance 40mm Automatic Movement Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch

**Brand:** seiko
**Price:** 6531.89 DT
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with Seiko PROSPEX – where precision meets prestige.

## Quick Answers

- **What is this?** Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch by seiko
- **How much does it cost?** 6531.89 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/731956557-seiko-prospex-automatic-spb121j1-mens-wristwatch)

## Best For

- seiko enthusiasts

## Why This Product

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

## Key Features

- • **Classic Comfort:** Genuine leather strap blends sophistication with all-day comfort, perfect for boardroom to weekend wear.
- • **Timeless Elegance:** Durable sapphire crystal glass offers scratch resistance while maintaining a sleek, polished look.
- • **Stay Ahead of Time:** Integrated date calendar keeps you effortlessly organized and punctual in every meeting.
- • **Everyday Resilience:** Reinforced 20 ATM water resistance means your watch keeps pace with your active lifestyle, rain or shine.
- • **Precision in Motion:** Experience the seamless reliability of Seiko's automatic movement, engineered for the modern professional.

## Overview

The Seiko PROSPEX AUTOMATIC SPB121J1 is a 40mm stainless steel men's wristwatch featuring a reliable automatic movement, reinforced 20 ATM water resistance for everyday durability, and scratch-resistant sapphire crystal glass. Designed with a genuine leather strap and a practical date calendar, it combines classic style with robust functionality for the discerning professional.

## Description

◆Case Material: Stainless Steel Belt Material: Leather ◆Glass material: sapphire crystal ◆Movement: Automatic Waterproof function: Reinforced waterproofing for everyday use (20 ATM). ◆Case Diameter: 40mm ◆Case thickness: 0.5 inches (13 mm). ◆Other functions: Date calendar

## Features

- Movement: Automatic
- Case Size (W x D x H): Approx. 1.6 x 0.5 inches (40 x 13 mm)
- Waterproof Performance: Reinforced water resistance for everyday use (20 ATM)
- Date calendar

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B083H6FJ5S |
| Amazon Bestseller | #1,643,520 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #15,184 in Men's Wrist Watches |
| Batteries  | 1 Unknown batteries required. (included) |
| Customer Reviews | 4.5 4.5 out of 5 stars (100) |
| Date First Available  | January 20, 2020 |
| Department  | Men |
| Is Discontinued By Manufacturer  | No |
| Item model number  | SPB121J1 |
| Manufacturer  | SEIKO(セイコー) |
| Product Dimensions  | 15 x 10 x 5 cm; 2 g |

## Images

![Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch - Image 1](https://m.media-amazon.com/images/I/61Ok5Nw56FL.jpg)
![Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch - Image 2](https://m.media-amazon.com/images/I/61pH9XwwZBL.jpg)
![Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch - Image 3](https://m.media-amazon.com/images/I/61nKaSPS1YL.jpg)
![Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch - Image 4](https://m.media-amazon.com/images/I/71LVAn2G1DL.jpg)
![Seiko PROSPEX AUTOMATIC SPB121J1 Men's Wristwatch - Image 5](https://m.media-amazon.com/images/I/41LJTOwBmFL.jpg)

## Questions & Answers

**Q: What is the extra button/stem for?**
A: It’s for the compass. Bought this watch in April and love it .

**Q: Replacer original band available? Size for replacement 2nd question? Thank you for the help .**
A: Hello,

We have new original bands available. 

Please directly contact us if you'd like to purchase a new original strap.

Best regards,

Golden Time Jewelers
Seiko Authorized Dealer

**Q: Automatic? Description say quartz movement.**
A: Automatic and hand-winding movement with a hacking function, amazon controls the content and might stands to be updated.

**Q: Is the inner, rotating bezel/compass black or green?**
A: Hello,

It's green.

Best regards,

GTJ

## Frequently Bought Together

- Seiko Prospex"Alpinist" Compass Green Dial Sapphire Glass Leather Watch SPB121J1
- Barton Quick Release - Top Grain Leather Watch Band Strap - Choice of Width - 16mm, 18mm, 19mm, 20mm, 21mm 22mm, 23mm or 24mm
- SEIKO Automatic Watch for Men - Presage Cocktail Time - Patterned with Golden Numerals and Date Calendar, 50m Water-Resistant

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**Shop now:** [https://www.desertcart.tn/products/731956557-seiko-prospex-automatic-spb121j1-mens-wristwatch](https://www.desertcart.tn/products/731956557-seiko-prospex-automatic-spb121j1-mens-wristwatch)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-31*