Product Description

The Citizen Promaster SKY BY3006-53E Geo Trekker is a high-performance pilot watch designed for global travelers and aviation enthusiasts. Part of the Promaster SKY series, it combines advanced timekeeping technology with a distinctive exploration-inspired design.

A unique highlight of this model is the UTC rotating disc hand displayed in the 6 o’clock subdial. The disc completes one full rotation every 24 hours and works together with the city ring to provide an approximate world time display for cities located in the Northern Hemisphere.

The city names and disc numerals use typography inspired by historic maps and aviation charts from the 17th century, giving the watch a refined exploration aesthetic while maintaining excellent readability. The aviation slide rule bezel also allows for quick pilot-style calculations.

To enhance visibility, the dial and bezel have been enlarged, while the case is shaped to reduce weight and emphasize a slimmer profile. A combination of matte hairline finishing and mirror-polished surfaces on the bezel slopes and push-button guards creates a strong visual contrast. The case back features an engraved Northern Hemisphere world map, reinforcing its global travel concept.

Powered by Citizen’s Eco-Drive technology, the watch converts light into energy, eliminating the need for battery replacement. It also features radio-controlled timekeeping, automatically receiving time signals from Japan, China, the United States, and Europe to maintain precise accuracy.

The Direct Flight function allows users to quickly switch to local time when traveling internationally.

Key Features

• Eco-Drive solar powered movement (no battery replacement required)
• Radio-controlled timekeeping (Japan / China / USA / Europe)
• UTC rotating disc world time display
• Aviation slide rule bezel
• Direct Flight world time adjustment
• Sapphire crystal with anti-reflective coating
• Stainless steel case and bracelet (Jet Black plating)
• 200m water resistance
• Luminous hands and markers for night visibility
• Screw-lock crown for enhanced durability
• Engraved Northern Hemisphere map on case back

Specifications

Brand: Citizen
Series: Promaster SKY
Model: BY3006-53E
Movement: Eco-Drive Caliber H864 (solar powered)

Case Size: 46.0 mm
Case Thickness: 11.5 mm
Weight: 180 g
Case Material: Stainless steel
Case Finish: Jet black plated finish

Crystal: Sapphire crystal with anti-reflective coating
Water Resistance: 200 meters (20 ATM)
Magnetic Resistance: JIS Type 1

Band Material: Stainless steel bracelet
Clasp: Three-fold push clasp
Band Width: 22 mm
Wrist Size: 120 – 205 mm

Accuracy: ±15 seconds per month (without signal reception)
Power Reserve: Approx. 2.5 years (power save mode)

Functions

• Radio controlled time synchronization (Japan / China / USA / Europe)
• Automatic signal selection
• Scheduled reception & manual reception
• Perpetual calendar
• Day & Date display
• 24-hour display
• Direct Flight time zone adjustment
• World time (26 time zones)
• UTC display
• Daylight saving time function

Citizen Perfex Multi 3000 Technology

• Magnetic resistance (JIS Class 1)
• Shock detection system
• Automatic hand position correction
• Multi-region radio signal reception

• Power reserve indicator
• Charge warning function
• Overcharge prevention
• Power save mode