---
product_id: 659348650
title: "Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER"
brand: "casio"
price: "¥50824"
currency: JPY
in_stock: true
reviews_count: 5
category: "Casio"
url: https://www.desertcart.jp/products/659348650-casio-pro-trek-outdoor-mens-watch-bluetooth-anthracite-prj-b001
store_origin: JP
region: Japan
---

# 100m water resistance for swimming & snorkeling Solar powered with long-lasting battery Accurate CASIO 5732 Quartz movement Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER

**Brand:** casio
**Price:** ¥50824
**Availability:** ✅ In Stock

## Summary

> 🕶️ Own the outdoors with precision and style — the Pro Trek that means business

## Quick Answers

- **What is this?** Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER by casio
- **How much does it cost?** ¥50824 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/659348650-casio-pro-trek-outdoor-mens-watch-bluetooth-anthracite-prj-b001)

## Best For

- casio enthusiasts

## Why This Product

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

## Key Features

- • **Effortless power:** Solar-powered design means no battery anxiety—stay charged on the go
- • **All-day visibility:** Luminous hands & indexes ensure you never miss a beat, day or night
- • **Military-grade durability:** Rugged 44mm resin case & mineral glass crystal built to withstand any adventure
- • **Sleek, lightweight comfort:** Just 48g with a secure resin band, perfect for active professionals who demand style & function
- • **Smart outdoor functionality:** Integrated stopwatch, countdown timer, alarm & 24-hour display for precise time management

## Overview

The Casio Pro Trek PRJ-B001-1ER is a solar-powered, military-inspired analogue watch featuring a durable 44mm resin case, mineral glass crystal, and 100m water resistance. Equipped with CASIO’s precise 5732 Quartz movement, it offers essential outdoor functions including stopwatch, countdown timer, alarm, and 24-hour display. Lightweight at 48g with a comfortable resin band, it’s designed for active professionals seeking rugged reliability and timeless style backed by a 2-year international warranty.

## Description

**CASIO Pro-Trek PRJ-B001-1ER Men's Military Style Analogue Watch** Embark on your next adventure with the CASIO Pro-Trek PRJ-B001-1ER, a timepiece engineered for the robust demands of the modern adult male. Rooted in CASIO's legendary Japanese precision and innovation, this military-inspired watch delivers unwavering reliability and superior functionality, making it an indispensable tool for outdoor enthusiasts and demanding environments. Crafted with exceptional durability in mind, the PRJ-B001-1ER features a substantial yet comfortable 46mm round case made from high-quality black resin, ensuring a lightweight feel at just 44g without sacrificing strength. The resilient black resin band, secured by a dependable tang buckle, provides a secure and comfortable fit during any activity. Protecting its striking black analogue dial is a robust mineral crystal, safeguarding against scratches and impacts. For optimal readability in any condition, the dial is equipped with luminous hands and indexes, ensuring time is always visible, day or night. At its core, this CASIO Pro-Trek watch is powered by the precise CASIO 5732 Quartz movement, offering accurate analogue timekeeping that you can depend on. Beyond its primary function, the PRJ-B001-1ER integrates a comprehensive suite of practical features: a clear date calendar, a versatile stopwatch for precise timing, a convenient countdown timer, a reliable alarm function to keep you on schedule, and 24-hour time display for diverse operational needs. This exceptional functionality is sustained by a long-lasting silver oxide battery. With an impressive water resistance of 100 meters (WR 100mt), this watch is perfectly suited for swimming, snorkeling, and enduring harsh weather conditions. The CASIO Pro-Trek PRJ-B001-1ER isn't just a watch; it's a testament to enduring performance and iconic design. Backed by a CASIO 2-year International Warranty, you're assured of the brand's commitment to quality and craftsmanship. Choose this Pro-Trek model for a blend of military-grade aesthetics and advanced features, ready to face any challenge alongside you.

Review: New protrek - Exactly what I wanted. Was looking for ga 2100 solar found this instead luv it
Review: Bonne petite montre, excellent rapport qualité prix - Après utilisation et malgré les qualités mentionnées ci-dessous, j'ai enlevé 1*,car tout de même, l'éclairage est nickel mais j'ai réalisé que le champ de la date est tellement minuscule que impossible à lire, alors que celui des secondes lui l'ai. Ils auraient tout aussi bien pu inverser que ça aurait été plus avisé. Acquise en profitant d'une bonne promo, c'est une montre à charge solaire, légère et agréable à porter. Contrairement à certains commentaires lus, facile à régler via l'application casio watches en Bluetooth, ce qui garantit une précision de réglage au fil du temps. Bien entendu il manque certaines fonctions utiles telles température baromètre etc, mais j'ai déjà ce qu'il faut concernant cela. Et puis, il faut aussi savoir reinterpreter les données d'algorithmes casio qui sont.. Disons aléatoire.. Ce que j'ai appris au fil du temps. Celle-ci a un truc nouveau qui est que via la lunette tournante on peut lui faire changer de forme. Et c'est la plus douce au porté. L'étoile en moins c'est que elle n'est pas pour les gros poignets.. Moi qui a un poignet de jeune fille (sic..) c'est plus que juste.. C'est d'ailleurs étrange sur cette gamme de protrek rondes.. Bref attention juste à l'attache. Et à ce niveau de prix (avec remise..) cool.

## Features

- Since 1946 CASIO has been producing casual and sports watches renowned for their typically Japanese quality and craftsmanship. The extensive catalog assortment is also among the best in the world in terms of price-performance ratio.
- For more than 20 years, CASIO Pro-Trek has offered functional watches specially designed for outdoor enthusiasts. These watches are always equipped with the latest technology and are perfectly adapted to the conditions of any outdoor activity.
- Rugged military style for men. Features a black round case with a matching dial, a durable resin band, and 100m water resistance.
- 10 ATM Water Resistant (swimming and snorkeling)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFY1TP68 |
| ASIN  | B0DFY1TP68 |
| Additional Features | Alarm, Solar powered, backlight, stopwatch |
| Age Range Description | Adult |
| Band Color | Gray |
| Band Material Type | Resin |
| Band Width | 22 Millimeters |
| Bands | 1 |
| Batteries  | 1 LR44 batteries required. (included) |
| Best Sellers Rank | #177,734 in Fashion ( See Top 100 in Fashion ) #4,646 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 44 Millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 13 Millimeters |
| Clasp Type | Pin Closure |
| Closure Type | Buckle |
| Country of Publication | China |
| Country of origin  | China |
| Crystal | Mineral Glass |
| Customer Reviews | 4.6 4.6 out of 5 stars (37) |
| Customer reviews | 4.6 4.6 out of 5 stars (37) |
| Date First Available  | 21 September 2024 |
| Department  | Men |
| Dial Color | Nero |
| Display | Analogico |
| Face Style | Classic |
| Included Components | Charging Cable, User Manual, Extra Strap (potential) |
| Item Type Name | Watch |
| Item Weight | 48 Grams |
| Item model number  | PRJ-B001-1ER |
| Manufacturer | Casio |
| Manufacturer  | Casio |
| Manufacturer Part Number | PRJ-B001-1ER |
| Model Name | Pro-Trek |
| Model Number | PRJ-B001-1ER |
| Model Series | Pro Trek |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Dimensions  | 11.9 x 11.9 x 8.6 cm; 48 g |
| Pattern | Solid |
| Power Source | Solar Powered |
| Shape | Rotondo |
| Sport Type | Hiking |
| Strap Type | Plastic strap |
| Style Name | Military |
| Theme | Sports |
| Warranty Type | Limited |
| Watch Movement Type | Al quarzo |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |

## Images

![Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER - Image 1](https://m.media-amazon.com/images/I/41ikC78QPnL.jpg)
![Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER - Image 2](https://m.media-amazon.com/images/I/519T6YIYDvL.jpg)
![Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER - Image 3](https://m.media-amazon.com/images/I/41XnIIekaIL.jpg)
![Casio Pro Trek Outdoor Men's Watch Bluetooth Anthracite PRJ-B001-1ER - Image 4](https://m.media-amazon.com/images/I/31Lt6BK9nTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ New protrek
*by R***N on 13 February 2026*

Exactly what I wanted. Was looking for ga 2100 solar found this instead luv it

### ⭐⭐⭐ Bonne petite montre, excellent rapport qualité prix
*by B***6 on 27 March 2026*

Après utilisation et malgré les qualités mentionnées ci-dessous, j'ai enlevé 1*,car tout de même, l'éclairage est nickel mais j'ai réalisé que le champ de la date est tellement minuscule que impossible à lire, alors que celui des secondes lui l'ai. Ils auraient tout aussi bien pu inverser que ça aurait été plus avisé. Acquise en profitant d'une bonne promo, c'est une montre à charge solaire, légère et agréable à porter. Contrairement à certains commentaires lus, facile à régler via l'application casio watches en Bluetooth, ce qui garantit une précision de réglage au fil du temps. Bien entendu il manque certaines fonctions utiles telles température baromètre etc, mais j'ai déjà ce qu'il faut concernant cela. Et puis, il faut aussi savoir reinterpreter les données d'algorithmes casio qui sont.. Disons aléatoire.. Ce que j'ai appris au fil du temps. Celle-ci a un truc nouveau qui est que via la lunette tournante on peut lui faire changer de forme. Et c'est la plus douce au porté. L'étoile en moins c'est que elle n'est pas pour les gros poignets.. Moi qui a un poignet de jeune fille (sic..) c'est plus que juste.. C'est d'ailleurs étrange sur cette gamme de protrek rondes.. Bref attention juste à l'attache. Et à ce niveau de prix (avec remise..) cool.

### ⭐⭐⭐⭐⭐ Gekauft und nie bereut
*by S***Y on 3 June 2025*

Die Uhr ist wirklich klasse. Trotz ihrer Größe ist sie auch für Menschen mit dünneren Handgelenken wie mich durch die kurzen Hörner absolut tragbar. Die Ablesbarkeit ist hervorragend, selbst das negative Display ist - im Gegensatz zu anderen Uhren dieser Marke - in allen Situationen sehr gut ablesbar. Und wenn nicht, hat man ja noch die sehr gute Beleuchtungsfunktion, die das Zifferblatt und das Display wirklich sehr gut ausleuchtet. Auch im Dunkeln lässt sich die Uhr sehr gut ablesen. Es ist genügend Leuchtmasse auf Zeigern und Indizes vorhanden. Dadurch ist die Nachtablesbarkeit hervorragend und hält locker bis zum Morgen. Das können viele wesentlich teurere Uhren nicht. Die Uhr ist sehr leicht und kaum spürbar am Handgelenk. Ein Batteriewechsel ist nicht notwendig, da es sich um eine Solaruhr handelt. Das Design ist schick. Die großen Funktionstasten sind durch eine um 45 Grad drehbare Lünette gegen ungewollte Betätigung geschützt und können durch Drehen der Lünette bei Bedarf freigegeben werden. Die Verbindung über Bluetooth mit dem Handy und der entsprechenden Casio App klappt problemlos. Über die App lässt sich die Zeiteinstellung einfach aktualisieren. Auch weitere Einstellungen wie Alarme, Signaltöne, Erinnerungen und Zeigerjustierung können in der App vorgenommen und an die Uhr gesendet werden. Sehr praktisch. Ansonsten hat die Uhr alles, was andere Uhren von Casio - wie z.B. die G-Shocks der 2100er Serie - auch haben: Stoppuhr, Timer, Weltzeit etc. Eine tolle Uhr, die auch noch schick aussieht. Seit dem Kauf haben meine mechanischen Uhren allesamt Pause und ich trage nur noch diese im Wechsel mit meiner GA-B2100. Sehr zu empfehlen - würde ich auf jeden Fall wieder kaufen. Mehr Uhr braucht man nicht.

## Frequently Bought Together

- Pro Trek Casio PRJ-B001-1ER Bluetooth Watch
- Casio Men's Digital Quartz Watch with Plastic Strap GW-M5610U-1ER

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-24*