Cazador

Citizen · Family: Series8

Citizen Series8 831 Mechanical GMT NB6034-58L

The Citizen Series8 831 Mechanical GMT NB6034-58L is a 41mm steel watch with a blue dial and a GMT function, part of the Series8 collection Citizen launched in 2021 as its high-end mechanical range, distinct from the Eco-Drive and radio-controlled DNA that dominates the rest of the brand. It runs the automatic calibre 9054, with 24 jewels and 50 hours of power reserve. Against the two Promaster references, the Attesa, and the Tsuyosa already in the catalog, this is the first Series8 and first GMT reference. We have no verified price observations yet (n=0).

Specifications

Case diameter
41 mm
Thickness
13.52 mm
Case material
Stainless steel
Movement
Calibre 9054, automatic, developed with Citizen's Miyota division, 24 jewels
Function
GMT with independent 24-hour hand for a second time zone
Power reserve
50 hours
Stated accuracy
-10/+20 seconds per day
Other features
Hacking seconds, antimagnetic protection
Water resistance
100 m / 10 bar
Dial
Deep blue with subtle texture, integrated 24-hour GMT scale
Caseback
Transparent, with movement view
Bracelet
Steel, double-locking clasp
Series8 collection launch year
2021

Price & trend

Insufficient data

0 of 5 price observations needed to show a reliable range

Insufficient data: 0 price observations recorded as of today. Cazador does not estimate or infer a range without our own verified market data.

History

Citizen was founded in 1918 in Japan and built much of its international reputation on Eco-Drive technology (light-powered quartz) and its radio-controlled calibers, found in the Attesa and much of the brand's catalog outside Japan.

In 2021, Citizen introduced Series8, a collection explicitly conceived as its high-end mechanical range, with a case design and bracelet-integration language distinct from the rest of the catalog and its own automatic calibers (the 0950/9050 family) instead of Eco-Drive or radio control. The 831 subgroup was positioned as the entry variant within Series8, with a more classic dial aesthetic than the 830.

Reference NB6034-58L expands that 831 subgroup with a GMT function, running calibre 9054 — a second-time-zone variant within the family of mechanical calibers Citizen develops with its Miyota division — with 24 jewels, 50 hours of power reserve, and hacking seconds for precise time-setting.

This reference sets itself apart from the other four Citizen references already in Cazador's catalog — two dive-oriented Promaster watches, the radio-controlled Attesa, and the mechanical integrated-bracelet Tsuyosa — as the first piece from the Series8 range and the first with a GMT function, part of Citizen's more recent push into high-end mechanical watchmaking.

Frequently asked questions

How much does a Citizen Series8 831 Mechanical GMT NB6034-58L cost?

Cazador has no verified price observations for this reference (0 PricePoints recorded as of today). We do not publish estimates without our own sourced market data.

What is the Series8 collection?

It's the high-end mechanical range Citizen launched in 2021, with its own automatic calibers and a design language distinct from the rest of the catalog, which is dominated by Eco-Drive and radio control.

Is it an Eco-Drive or radio-controlled watch?

No. Unlike the Attesa or the Promaster watches already in Cazador, the Series8 831 runs its own automatic mechanical caliber, with no quartz or time-signal reception.

How does the GMT complication work?

An independent hand travels around a 24-hour scale on the dial, letting the wearer read a second time zone alongside local time.

What power reserve does the calibre 9054 offer?

50 hours, with 24 jewels, hacking seconds, and antimagnetic protection.

How does it differ from the Citizen Tsuyosa already in Cazador?

The Tsuyosa is a mechanical integrated-bracelet watch within Citizen's general catalog; the Series8 831 belongs to a distinct range positioned as the brand's high-end mechanical proposition, and this reference adds a GMT function.

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