Product Description

The Citizen Promaster SKY BY3006-53H Geo Trekker is a sophisticated pilot watch designed for global explorers and aviation enthusiasts. As part of the Citizen Promaster SKY Series, it combines advanced aviation functionality with a refined exploration-inspired design.

A unique feature of this model is the UTC rotating disc hand displayed in the 6 o’clock subdial. The disc rotates once every 24 hours and works together with the city ring to indicate approximate world times for cities in the Northern Hemisphere.

The typography used for city names and the UTC disc draws inspiration from historic maps and aviation charts from the 17th century, giving the watch a distinctive intellectual and exploration-themed aesthetic. The aviation slide rule bezel also allows for quick pilot-style calculations.

To enhance readability, the dial and bezel have been enlarged while the case adopts a bowl-shaped design that reduces weight and emphasizes a slimmer profile. The case features a matte hairline finish complemented by mirror-polished surfaces on the bezel slopes and push-button guards, creating a striking contrast.

The case back is engraved with a Northern Hemisphere world map, reinforcing the watch’s global travel concept.

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

The Direct Flight function allows quick adjustment to the local time zone when traveling internationally.

Key Features

• Eco-Drive solar powered movement (no battery replacement required)
• Radio-controlled time synchronization (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
• 200m water resistance
• Luminous hands and markers for improved visibility
• Screw-lock crown for durability
• Engraved Northern Hemisphere map case back

Specifications

Brand: Citizen
Series: Promaster SKY
Model: BY3006-53H
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: Gray 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

Perfex Multi 3000 Technology

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

Additional functions:

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