---
product_id: 446575930
title: "Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel"
brand: "seiko"
price: "€ 9.60"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.hr/products/446575930-seiko-spb121-prospex-mens-watch-brown-39-5mm-stainless-steel
store_origin: HR
region: Croatia
---

# 70-hour power reserve LumiBrite hands & markers Screw-down crown for water resistance Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel

**Brand:** seiko
**Price:** € 9.60
**Availability:** ❌ Out of Stock

## Summary

> ⌚ Own the moment with Seiko SPB121 – where precision meets prestige.

## Quick Answers

- **What is this?** Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel by seiko
- **How much does it cost?** € 9.60 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/446575930-seiko-spb121-prospex-mens-watch-brown-39-5mm-stainless-steel)

## 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

- • **Effortless Security:** Tri-fold clasp with push-button release offers a sleek, secure fit for your on-the-go lifestyle.
- • **Instant Time Clarity:** Magnified date window and LumiBrite hands ensure you never miss a beat, day or night.
- • **Dive-Ready Durability:** Screw-down crown and 200m water resistance mean this watch is built for adventure, rain or shine.
- • **Endurance Meets Elegance:** 70-hour power reserve keeps you ticking through your busiest days and weekends.
- • **Timeless Style Statement:** Green sunray dial with gold accents and stainless steel case blends classic sophistication with modern edge.

## Overview

The Seiko SPB121 Prospex Men's Watch combines a robust 39.5mm stainless steel case with a 70-hour automatic power reserve and 200m water resistance. Featuring a screw-down crown, magnified date window, and LumiBrite hands for superior legibility, this green sunray dial timepiece is designed for professionals who demand durability and style in one iconic watch.

## Description

- Automatic Winding Capability - Magnified Date Window - LumiBrite Hands and Markers - Green Dial with Sunray Finish and Gold Accents - Rotating Bezel - Tri-Fold Clasp with Push Button Release.

Review: Superb! - On time, authentic, unbeatable price, watch co is the best watch retailer on here
Review: Mi reloj favorito - Se volvió mi reloj favorito. Es un reloj único, siento que no hay nada que se le asemeje. Mi muñeca es pequeña (15.4 cm) y aún así siento que me queda perfecto. La correa no es tan cómoda, pero visualmente a mi me gusta mucho como se ve. Este reloj lo tiene todo: tiene 70 horas de reserva de marcha; cristal de zafiro; 200 m de resistencia al agua; el bisel interno que es una brújula que usas de acuerdo a la posición del sol; y la combinación de los colores y como brilla en el sol me parece hermoso.

## Features

- Screw-down crown, screw, see-through caseback, 70 hour power reserve, magnified date window, LumiBrite hands and markers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B33H4V74 |
| Additional Features | Bezel Markings |
| Age Range Description | Adult |
| Band Color | Brown |
| Band Material Type | Stainless Steel |
| Band Width | 20 |
| Bands | 1 |
| Best Sellers Rank | #252,836 in Fashion ( See Top 100 in Fashion ) #6,818 in Men's Wrist Watches |
| Brand Name | Seiko |
| Case Diameter | 39.5 Millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 13 Millimeters |
| Character | Fashion |
| Clasp Type | Tri-fold clasp with push button release |
| Closure Type | Buckle |
| Crystal | Mineral Glass |
| Customer Reviews | 4.7 out of 5 stars 131 Reviews |
| Dial Color | Green |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | [OTHER] |
| Included Components | Watch Band |
| Manufacturer | Seiko |
| Manufacturer Part Number | SPB121 |
| Model Name | SPB121 |
| Model Number | SPB121 |
| Pattern | Sunray |
| Power Source | Automatic |
| Series Number | 121 |
| Shape | Round |
| Sport Type | Walking |
| Strap Type | Leather |
| Style Name | Modern |
| Theme | Fashion |
| UPC | 029665200730 |
| Watch Movement Type | Automatic |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |

## Images

![Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel - Image 1](https://m.media-amazon.com/images/I/41Q-qMVHxoL.jpg)
![Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel - Image 2](https://m.media-amazon.com/images/I/41fLBAYrAOL.jpg)
![Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel - Image 3](https://m.media-amazon.com/images/I/51zEOSjdhnL.jpg)
![Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel - Image 4](https://m.media-amazon.com/images/I/61pf40gy1AL.jpg)
![Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel - Image 5](https://m.media-amazon.com/images/I/511Tf+w8h+L.jpg)

## Questions & Answers

**Q: How can I be sure of that is original watch?**
A: I don’t believe they are making knock offs of a watch under a 1000.00 dollars

## Customer Reviews

### ⭐⭐⭐⭐⭐ Superb!
*by A***A on 10 May 2026*

On time, authentic, unbeatable price, watch co is the best watch retailer on here

### ⭐⭐⭐⭐⭐ Mi reloj favorito
*by A***. on 6 May 2026*

Se volvió mi reloj favorito. Es un reloj único, siento que no hay nada que se le asemeje. Mi muñeca es pequeña (15.4 cm) y aún así siento que me queda perfecto. La correa no es tan cómoda, pero visualmente a mi me gusta mucho como se ve. Este reloj lo tiene todo: tiene 70 horas de reserva de marcha; cristal de zafiro; 200 m de resistencia al agua; el bisel interno que es una brújula que usas de acuerdo a la posición del sol; y la combinación de los colores y como brilla en el sol me parece hermoso.

### ⭐⭐⭐⭐⭐ Outstanding Watch, Shipping and Price
*by E***B on 24 December 2025*

Love love love this watch! It is gorgeous. The sapphire crystal, the cathedral hands, the cyclops calendar, the green dial, the gold numerals, the super shiny bezel and lugs are all outstanding. The brown leather watch band is very secure with a locking closure and two tips at the front and the back of the bracelet for extra security. I have a very small wrist and this fit very well. This watch is only 1.5 mm larger than my Bulova field watch but does not look bigger. It, however, is more prominent on my wrist because of its height. The band fits much better than any other watch manufacture band. I read complaints about the band but with exception of the color, I don't wear much brown, I love it. The shipping was fast. I received it a day early. It was a great price for a great watch. Thank you Wristoutlet.

## Frequently Bought Together

- Seiko SPB121 Prospex Men's Watch Brown 39.5mm Stainless Steel
- Bergeon 4040 Extensible and reversible movement holder Watchmaker Tools
- BERGEON 8008 Rubber Ball to Open and Close case Backs Ø65 mm, black,white, Open

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**Shop now:** [https://www.desertcart.hr/products/446575930-seiko-spb121-prospex-mens-watch-brown-39-5mm-stainless-steel](https://www.desertcart.hr/products/446575930-seiko-spb121-prospex-mens-watch-brown-39-5mm-stainless-steel)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-26*