Citizen Series8 800 GMT 41mm Automatic Watch #NB6031-56E
39-NB6031-56E
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Model Reference: NB6031-56E
Overview
The Citizen Series 8 NB6031-56E is a high-performance mechanical GMT that merges the geometric boldness of the 880 series with a "True GMT" functionality. It is designed for the modern global traveler, featuring a striking two-tone black and blue "Batman" bezel and a dial that pays homage to the Japanese skyline. This timepiece is a technical flagship for the Series 8 line, housing an upgraded movement that allows for independent hour-hand adjustment, all while maintaining the collection's signature sharp-edged, integrated-bracelet aesthetic.
Technical Specifications
Case Size: 41mm (A sharp, architectural profile with a 13.5mm thickness)
Case Material: Silver-Tone Stainless Steel (Multi-faceted with satin-brushed and polished surfaces)
Movement: Caliber 9054 (In-house Automatic GMT; 28,800 vph with a 50-hour power reserve)
Crystal Type: Sapphire Crystal (Anti-reflective coating for high-contrast visibility)
Water Resistance: 100 Meters (10 ATM / 333 feet) — Suitable for swimming and versatile daily wear
Dial: Black with a geometric "skyscraper" pattern and applied baton indices
Bezel: Bi-directional rotating 24-hour GMT bezel with a black and blue aluminum ring
Strap: Integrated-style silver-tone stainless steel H-link bracelet with a deployment clasp
Special Features
"True" GMT Functionality: The Caliber 9054 movement allows the wearer to adjust the local hour hand independently in one-hour increments without stopping the watch. This is the ideal configuration for travelers frequently crossing time zones.
Ichimatsu-Inspired Dial: The dial features a contemporary interpretation of the traditional Japanese Ichimatsu checkerboard pattern. The varying sizes of the textured squares represent the windows of a nighttime city skyline, creating a deep, light-catching relief.
Enhanced Power Reserve: Unlike the standard Series 8 movements, the Caliber 9054 offers an extended 50-hour power reserve, providing additional "weekend proof" autonomy.
Advanced Magnetic Resistance: Engineered to meet JIS Class 2 standards, the movement can withstand magnetic fields up to 16,000 A/m. This protects the mechanical timing from the interference of smartphones, laptops, and tablet covers.
Bi-Directional 24-Hour Bezel: The rotating bezel works in tandem with the dedicated GMT hand (finished in a contrasting color) to track a third time zone, while the blue and black halves provide a visual day/night indicator.
Multi-Piece Case Design: The case architecture is composed of multiple components, allowing for surgical precision in finishing. The sharp transitions between the mirror-polished edges and brushed facets give the watch a high-jewelry, industrial feel.
Exhibition Case Back: A sapphire crystal window on the reverse side reveals the movement’s industrial decoration and the rhythmic motion of the balance wheel and rotor.
Integrated Bracelet Taper: The stainless steel bracelet is designed to flow seamlessly from the case, tapering significantly toward the clasp to ensure the watch remains balanced and centered on the wrist.
High-Visibility Lume: The hands and indices are generously coated in luminous material, ensuring the three distinct time zones can be read easily in total darkness.
Overview
The Citizen Series 8 NB6031-56E is a high-performance mechanical GMT that merges the geometric boldness of the 880 series with a "True GMT" functionality. It is designed for the modern global traveler, featuring a striking two-tone black and blue "Batman" bezel and a dial that pays homage to the Japanese skyline. This timepiece is a technical flagship for the Series 8 line, housing an upgraded movement that allows for independent hour-hand adjustment, all while maintaining the collection's signature sharp-edged, integrated-bracelet aesthetic.
Technical Specifications
Case Size: 41mm (A sharp, architectural profile with a 13.5mm thickness)
Case Material: Silver-Tone Stainless Steel (Multi-faceted with satin-brushed and polished surfaces)
Movement: Caliber 9054 (In-house Automatic GMT; 28,800 vph with a 50-hour power reserve)
Crystal Type: Sapphire Crystal (Anti-reflective coating for high-contrast visibility)
Water Resistance: 100 Meters (10 ATM / 333 feet) — Suitable for swimming and versatile daily wear
Dial: Black with a geometric "skyscraper" pattern and applied baton indices
Bezel: Bi-directional rotating 24-hour GMT bezel with a black and blue aluminum ring
Strap: Integrated-style silver-tone stainless steel H-link bracelet with a deployment clasp
Special Features
"True" GMT Functionality: The Caliber 9054 movement allows the wearer to adjust the local hour hand independently in one-hour increments without stopping the watch. This is the ideal configuration for travelers frequently crossing time zones.
Ichimatsu-Inspired Dial: The dial features a contemporary interpretation of the traditional Japanese Ichimatsu checkerboard pattern. The varying sizes of the textured squares represent the windows of a nighttime city skyline, creating a deep, light-catching relief.
Enhanced Power Reserve: Unlike the standard Series 8 movements, the Caliber 9054 offers an extended 50-hour power reserve, providing additional "weekend proof" autonomy.
Advanced Magnetic Resistance: Engineered to meet JIS Class 2 standards, the movement can withstand magnetic fields up to 16,000 A/m. This protects the mechanical timing from the interference of smartphones, laptops, and tablet covers.
Bi-Directional 24-Hour Bezel: The rotating bezel works in tandem with the dedicated GMT hand (finished in a contrasting color) to track a third time zone, while the blue and black halves provide a visual day/night indicator.
Multi-Piece Case Design: The case architecture is composed of multiple components, allowing for surgical precision in finishing. The sharp transitions between the mirror-polished edges and brushed facets give the watch a high-jewelry, industrial feel.
Exhibition Case Back: A sapphire crystal window on the reverse side reveals the movement’s industrial decoration and the rhythmic motion of the balance wheel and rotor.
Integrated Bracelet Taper: The stainless steel bracelet is designed to flow seamlessly from the case, tapering significantly toward the clasp to ensure the watch remains balanced and centered on the wrist.
High-Visibility Lume: The hands and indices are generously coated in luminous material, ensuring the three distinct time zones can be read easily in total darkness.
Estimated production and handling times vary and are indicated individually on each item's page. All online orders are shipped with Canada Post priority mail unless otherwise arranged. Shipping transit times to Canada and the USA is around 3-6 business days depending on the location. Upon receiving successful payment for a product, we will provide an estimated delivery date for the product to be shipped via email.
