Apple Watch Watch 42mm

Reference MJ3U2LL

About this watch

The Apple Watch 42mm (MJ3U2LL) stands out as a sleek, functional, and stylish smartwatch that combines the best of design, technology, and practicality. Its vibrant digital display is easy on the eyes, with navigation made intuitive by a user-friendly interface. With its impressive array of features, including heart rate tracking, GPS, and seamless connectivity, this watch caters to both tech enthusiasts and casual users alike. The Apple Watch 42mm offers a water resistance rating of 1.00 m, making it suitable for swimming or showering. Its blend of fitness tracking, stylish aesthetics, and effortless usability make it a worthy investment for anyone looking to elevate their wrist game.

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Key Features

Digital display with intuitive navigation
Heart rate monitoring and GPS tracking
Seamless connectivity with Apple ecosystem
Sapphire glass and water resistance up to 1.00 m
18-hour battery reserve with magnetic charging

Specifications

Brand

Apple

Family

Watch

Model

Watch 42mm

Reference

MJ3U2LL

Movement

apple-watch

Movement Features

Hours, Minutes, Seconds, World Time
Date, Day, Month, Perpetual Calendar, Week Indicator, Year Indicator
Chronograph
Moonphase, Sun position / rising time
Alarm
Smartwatch

Case

35.9mm

Crystal

Sapphire

Water Resistance

Current Listings

Apple Watch Ultra 2 (GPS + Cellular, 49mm Titanium, Green/Gray Trail Loop M/L)

Apple - Ultra 2 · $425

This is a 49mm titanium Apple Watch Ultra 2 with GPS + Cellular and original Green/Gray Trail Loop (M/L). It was purchased new from Apple in September 2023 and has been lightly used.

Condition: Very good overall condition
Case size: 49mm diameter
Case material: Titanium

Posted at

Feb 12, 2026, 2:37 PM

Active

View listing on r/WatchExchange

Apple Watch Ultra 3 in black DLC ***Price Reduced*

Apple - Ultra 3 · $600

The watch is an Apple Watch Ultra 3 in Black DLC that was bought brand new from Apple but returned due to a change of heart. It has been well taken care of and comes with two authentic Apple Watch bands and the ESR case.

Condition: Used, original owner
Case Material: DLC (Diamond-Like Carbon)
Screen Protection: Sapphire glass with screen protector
Band Inclusion: Two authentic Apple Watch bands

Posted at

Feb 7, 2026, 8:03 PM

Active

View listing on r/WatchExchange

NOMAD Atlantic Blue Apple Watch Sport Band 44/45/49 [W] $35 shipped PP

· $35

The listing is for a NOMAD Apple Watch Sport Band in Atlantic Blue, available in sizes 44/45/49.

Condition: Brand New
Material: leather

Posted at

Feb 6, 2026, 11:07 PM

Active

View listing on r/WatchExchange

Apple Watch Ultra 1 w/ 5 bands

Apple - Ultra Gen 1 · $400

A Apple Watch Ultra Gen 1 with 5 bands, in good condition and with 89% battery health.

Battery Health: 89 percent
Shipping Options: USPS/UPS or local in Orange County, CA
Payment Method: Paypal G&S

Posted at

Feb 6, 2026, 8:39 PM

Active

View listing on r/WatchExchange

Apple Watch Ultra 2 (GPS+ Cellular) w/ Orange Ocean Band

Apple - Ultra 2 (GPS+ Cellular) · $375

An Apple Watch Ultra 2 in like new condition, featuring a Titanium case and S9 processor. It's still under warranty with battery health at 100%. The watch comes with original box and manuals.

Condition: Like new
Case dimensions: 49mm width, 44mm L to L, 14.4mm thick
Movement processor: 64-bit dual-core S9

Posted at

Feb 6, 2026, 12:11 PM

Active

View listing on r/WatchExchange