Citizen Men’s Eco-Drive Promaster Land Altichron Watch in

Product Overview

The Citizen Men’s Eco-Drive Promaster Land Altichron Watch (Model: BN5058-07E) is a purpose-built timepiece engineered for outdoor enthusiasts who rely on accurate environmental data during their pursuits. Whether you’re ascending mountain trails, navigating remote backcountry routes, or simply tracking elevation changes on a weekend hike, this watch delivers essential functionality in a rugged, weather-resistant design. At its core is Citizen’s innovative Eco-Drive technology, which harnesses any available light—sunlight or artificial—to power the movement, eliminating the need for routine battery replacements. This self-sustaining system ensures consistent performance, even on extended trips where access to replacement batteries isn’t practical.

The watch features a bold black ion-plated stainless steel case that resists scratches and corrosion, maintaining its sleek appearance through repeated exposure to the elements. Paired with a durable black polyurethane strap, it offers a secure, comfortable fit that withstands sweat, moisture, and physical impact. The black dial, accented with bright red details, enhances readability in varying light conditions, from direct sunlight to overcast skies or low-light forest trails. Designed for semi-professional adventurers, the Altichron blends technical precision with everyday wearability, making it a reliable companion for both high-altitude excursions and daily use.

Key Features

• Eco-Drive Light-Powered Movement: Powered entirely by light, this system converts both natural and artificial light into energy, stored in a rechargeable cell. No battery changes are needed under normal exposure, offering long-term reliability and convenience.
• Built-in Altimeter: Accurately measures elevation from 1,000 feet to 32,000 feet, enabling users to monitor altitude changes in real time—critical for tracking ascent progress, estimating remaining climb distance, or adjusting pace during endurance activities.
• Integrated Compass: Provides reliable directional orientation, essential for route-finding in areas without GPS coverage or when electronic devices fail. The compass aids in maintaining course during off-trail navigation or emergency situations.
• Date Display: A practical date window at the 3 o’clock position supports daily organization, helping users stay on schedule during multi-day adventures or routine activities.
• Durable Construction: The combination of a black ion-plated stainless steel case and a flexible, shock-resistant polyurethane strap ensures resilience against impacts, moisture, and daily wear. The materials are chosen for both strength and comfort during prolonged use.
• High-Visibility Dial: The black dial features luminous elements and contrasting red accents, ensuring clear time and function readability in bright daylight, dusk, or low-light environments.
• Caliber J290 Movement: This Japanese quartz movement powers the watch’s advanced functions with precision and stability, supporting the altimeter, compass, and timekeeping systems efficiently.

Technical Specifications

• Model Number: BN5058-07E
• Department: Men’s
• Case Material: Black ion-plated stainless steel
• Strap Material: Black polyurethane
• Dial Color: Black with red accents
• Movement: Eco-Drive Caliber J290 (light-powered)
• Functions: Altimeter (1,000ft – 32,000ft), compass, date, time
• Battery: 1 LR44 (included; supports Eco-Drive charging system)
• Product Dimensions: 4.72 x 4.72 x 4.72 inches
• Weight: 4.48 ounces
• ASIN: B071K6V199
• Date First Available: November 15, 2023
• Manufacturer: Citizen Watch Company
• Not Discontinued By Manufacturer: Yes

Benefits & Use Cases

This watch is ideal for hikers, climbers, trail runners, and outdoor adventurers who need dependable tools without the bulk of separate devices. The altimeter allows users to monitor elevation gain and loss, helping manage physical exertion and track progress on steep terrain. The compass provides critical navigation support when trail markers are absent or GPS signals are unreliable, enhancing safety in remote locations. Its lightweight build—just 4.48 ounces—ensures comfort during long treks, while the durable construction withstands exposure to rain, dust, and rough handling.

The Eco-Drive system is particularly valuable for extended expeditions where access to electricity is limited. With regular light exposure, the watch maintains power indefinitely, removing the risk of a dead battery at a crucial moment. The design transitions effortlessly from rugged outdoor use to casual urban wear, making it a versatile choice for active lifestyles. Whether you’re summiting a peak, exploring forest trails, or simply staying organized in daily life, the Promaster Altichron delivers essential functionality in a dependable, low-maintenance package.

Important Notes

• Includes one LR44 battery to support the initial charge of the Eco-Drive system; no further battery replacements are typically needed under normal light exposure.
• Manufacturer’s warranty is available and can be requested directly through Citizen’s customer service.
• Product dimensions and weight reflect the packaged item; actual watch size may vary slightly.
• Best suited for semi-professional outdoor use; not rated for deep-sea diving or extreme professional mountaineering.
• Clean with a soft, dry cloth; avoid exposure to harsh chemicals or prolonged submersion in water beyond intended resistance levels.