---
product_id: 347128984
title: "Rubber Sea Analog Black Dial Men Watch-Xs.3121.Bo, Black Band"
brand: "luminox"
price: "53186160₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Luminox"
url: https://www.desertcart.vn/products/347128984-rubber-sea-analog-black-dial-men-watch-xs-3121-bo
store_origin: VN
region: Vietnam
---

# 25-year self-powered Luminox Light Technology 200m water resistance for deep dives 44mm robust stainless steel case Rubber Sea Analog Black Dial Men Watch-Xs.3121.Bo, Black Band

**Brand:** luminox
**Price:** 53186160₫
**Availability:** ✅ In Stock

## Summary

> 🌊 Own the night and the depths with Luminox – where style meets unstoppable performance.

## Quick Answers

- **What is this?** Rubber Sea Analog Black Dial Men Watch-Xs.3121.Bo, Black Band by luminox
- **How much does it cost?** 53186160₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/347128984-rubber-sea-analog-black-dial-men-watch-xs-3121-bo)

## Best For

- luminox enthusiasts

## Why This Product

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

## Key Features

- • **Comfort Meets Style:** Genuine black rubber strap with a classic tang buckle offers all-day comfort and a modern professional look.
- • **Dive-Ready Durability:** Water resistant up to 200 meters with a screw-in crown and case back, built to perform under pressure.
- • **Bold Blacked-Out Design:** A sleek, stealthy all-black dial and bezel that commands attention in any boardroom or weekend adventure.
- • **Unmatched Night Visibility:** Luminox Light Technology ensures your watch glows continuously without battery drain—always ready, day or night.
- • **Scratch-Resistant Sapphire Crystal:** Keeps your watch face pristine and clear, reflecting your polished, detail-oriented lifestyle.

## Overview

The Luminox Rubber Sea Analog Black Dial Men Watch (Model XS.3121.BO) is a high-performance timepiece featuring a 44mm stainless steel case, genuine rubber strap, and water resistance up to 200 meters. Its signature Luminox Light Technology provides continuous night visibility for up to 25 years without battery use. Designed for professionals who demand durability and style, it includes a scratch-resistant sapphire crystal and a secure screw-in crown, making it perfect for both urban and underwater adventures.

## Description

Model 3121.BO is a black on black (blacked out dial, black bezel and black case) eye-catcher coming with a genuine rubber strap and featuring water resistance to 200 meters, screw in crown and case back, sapphire crystal and, of course, the Luminox Light Technology, which guarantees constant night visibility for up to 25 years.

Review: Wer schwarz mag 👍. Ist natürlich Geschmacksache aber ich finde sie ultra cool.
Review: Desde ayer recibí el reloj se ha convertido en uno de mis favoritos por su elegante y sencillo diseño y por sus características. Las cápsulas de tritio realmente funcionan y son muy visibles en la oscuridad, y el diseño y materiales del reloj son de primera. Estoy muy satisfecho con esta compra.

## Features

- Download and print the new PDF size guide to ensure the watch fits your wrist perfectly. Please follow all instructions in the PDF carefully so that the print is smooth and accurate.
- The Pacific coast is the place where scuba diving became famous. And where Luminox was founded in the small town of San Rafael, CA, in 1989 with the vision of developing high-performance sports watches with state-of-the-art lighting and best readability.
- Lighting technology: Green & Orange Luminox Light Technology (LLT) on dial ring, second, minute and hour hands - LLT: Self-powered lighting system with tiny micro gas light sources; Always visible under all circumstances; No push of a button to light up; Requires no battery for the light; Up to 25 years.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BR8215Y |
| ASIN  | B08BR8215Y |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Length | 210 Millimetres |
| Band Material | Rubber |
| Band Style1 - Band Style5 | Classic |
| Band Width | 24 Millimetres |
| Bands | 1 |
| Batteries  | 1 Lithium Metal batteries required. |
| Best Sellers Rank | #56,614 in Watches ( See Top 100 in Watches ) #28,361 in Men's Wrist Watches |
| Brand | Luminox |
| Case Diameter | 44 Millimetres |
| Case Material1 - Case Material2 | Stainless Steel |
| Case Shape | Round |
| Case Thickness | 12 Millimetres |
| Character | Fashion |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Country of Origin | USA |
| Country of Origin  | USA |
| Crystal Material | Mineral Glass |
| Customer Reviews | 4.5 4.5 out of 5 stars (119) |
| Date First Available  | 27 June 2020 |
| Department  | mens |
| Dial Colour | Black |
| Display Type | Analog |
| EU Spare Part Availability Duration | 2 Years |
| Embellishment Feature | Crystal |
| Face Style | Diver |
| Generic Name  | Watch |
| Included Components | Genuine Rubber Strap |
| Included Components  | Genuine Rubber Strap |
| Item Dimensions LxWxH  | 10 x 8 x 5 Centimeters |
| Item Type Name | Watch |
| Item Weight | 200 Grams |
| Item Weight  | 200 g |
| Item model number  | XS.3121.BO |
| Manufacturer | Luminox |
| Manufacturer  | Luminox |
| Model Name | PACIFIC DIVER 3120 SERIES |
| Model Number | XS.3121.BO |
| Movement Type | Quartz |
| Net Quantity  | 1 Count |
| Pattern | Solid |
| Power Source Type | Battery Powered |
| Product Dimensions  | 10 x 8 x 5 cm; 200 g |
| Series Number | 3120 |
| Sport1 - Sport3 | Walking |
| Strap Type | Two Piece Strap |
| Unit Count | 1 Count |
| Water Resistance Depth | 200 Metres |
| Water Resistance Level | Water Resistant |

## Images

![Rubber Sea Analog Black Dial Men Watch-Xs.3121.Bo, Black Band - Image 1](https://m.media-amazon.com/images/I/71vo03kbwnL.jpg)

## Questions & Answers

**Q: Is this an authentic Luminox product?**
A: 100% authentic Luminox. 100% original, brand new box w/ warranty and papers.

**Q: What is the battery type and how long does it last? Also, does replacing the battery require an authorized dealer? Thanks!**
A: Like most watch batteries, this one is rated to last an average of about 2-3 years. The manufacturer recommends that the battery be replaced through warranty service with their authorized service centers, however, it should be fine to have it done by any professional jeweler or watch retailer. The key is to avoid doing it yourself and have it done by someone with the proper tools and experience to avoid damaging the internals during replacement and void your warranty.

**Q: Will Luminox ever sell this watch with a 39 mm case?**
A: Sounds like you need to look in the women’s section

**Q: Is there a warranty card?**
A: A warranty card is included in the box.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***8 on 25 October 2025*

Wer schwarz mag 👍. Ist natürlich Geschmacksache aber ich finde sie ultra cool.

### ⭐⭐⭐⭐⭐ Review
*by R***O on 23 January 2023*

Desde ayer recibí el reloj se ha convertido en uno de mis favoritos por su elegante y sencillo diseño y por sus características. Las cápsulas de tritio realmente funcionan y son muy visibles en la oscuridad, y el diseño y materiales del reloj son de primera. Estoy muy satisfecho con esta compra.

### ⭐⭐⭐ Review
*by J***P on 9 June 2023*

Me gusto la calidad-precio del reloj, lo que no me gusto es que llegó sin los papeles de la marca (instructivo-garantía) lo que hace que desconfíes si es original o no…

## Frequently Bought Together

- Luminox PACIFIC DIVER 3120 SERIES
- Luminox FPX.2201.20B.1.K Watch Strap - 22 mm Black PU Replacement Strap with Stainless Steel Pin Buckle for 0320 0321 0325, black, Strap.
- Renata Two 395 SR927SW Watch battery ()

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**Shop now:** [https://www.desertcart.vn/products/347128984-rubber-sea-analog-black-dial-men-watch-xs-3121-bo](https://www.desertcart.vn/products/347128984-rubber-sea-analog-black-dial-men-watch-xs-3121-bo)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-19*