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Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm
Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm

Grand Seiko Sport Quartz GMT black dial steel bracelet 39 mm

Ref. SBGN027
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This Grand Seiko SBGN027 is the perfect GMT watch for regular travellers! Accurate, reliable and sporty, it ticks all the boxes to make a perfect daily watch!

Sport and GMT: a perfect match

The GMT function is an integral part of the Manufacture Grand Seiko's catalogue and is offered in a wide range of styles, either with a Spring Drive calibre or an Automatic movement. This time, the Japanese brand presents a watch from the Sport collection offering a quartz movement with GMT complication. A model designed to be a must-have for any frequent traveller!

Un design sport-chic

This SBGN027 has a steel case measuring 39 mm in diameter and 12.3 mm thick. It is associated with a brushed "oyster" type bracelet. The case is water-resistant to 100 metres and has a screw-down crown at four o'clock for optimum comfort, as well as a curved anti-reflective sapphire crystal surrounded by a fixed steel bezel with a 24-hour scale.

Its case has a good sense of balance and perfect proportions! Its exceptional finishes are eye-catching, with Zaratsu-polished surfaces contrasting with hand-satinned surfaces, underlining the Grammar of Design, the design philosophy of Grand Seiko.

We find on this reference a black sunray dial which presents monochrome reflections. The white GMT hand contrasts perfectly with this black dial. Precisely, the hands and the indexes of this model are nicely finished and have a Lumibrite painting for an excellent visibility at night. The hands have a brushed finish to contrast with the darker surfaces of the dial, which helps to improve legibility.

A Manufacture quartz calibre

When the 9F series was created in 1993, Grand Seiko engineers wanted to include a GMT function. Unfortunately, production limitations at the time did not allow for the production of the small leaf spring required for the independent hour hand adjustment function. Because of this difficulty, the idea was shelved until the problem was solved. In 2018, Grand Seiko finally introduced the calibre 9F86, the brand's first quartz movement to feature a GMT complication.

This calibre 9F86 has a precision of +/-10 seconds per year. It has a high torque, close to that of a mechanical movement, while maintaining a low level of energy consumption. An aged quartz crystal is combined with a very low power consumption integrated circuit, programmed according to the specific reaction of this crystal to temperature changes, thus guaranteeing the highest possible level of performance. Incidentally, each quartz crystal has different performance characteristics, but only the most accurate are selected for the Grand Seiko 9F movements. Grown in-house, they are aged and rigorously tested over a period of 3 months, to ensure that only the best quartz oscillators are incorporated into each timepiece.

The 9F86 is built to the same exacting standards as Grand Seiko's mechanical and Spring Drive movements, and features an almost all-metal construction. They are designed to be serviced by a qualified watchmaker.

Specifications

Brand
Grand Seiko
Reference
SBGN027
Condition
New
Country of manufacture
Japon
Warranty
5 years
Brand Collection
Sport - Grand Seiko
Launch year
2022
Gender
Man
Must-Have / Essentials
New
Case material
Stainless steel
Water Resistant
100 m
Diameter
39 mm
Crystal
Breaks and scratches with difficulty, anti-reflective treatment, Domed, Sapphire crystal
Watch movement
Quartz, Manufacture quartz electronics
Movement model
9F86
Strap materials
Stainless steel
Buckle
Deployant clasp
Case shape
Round
Case material
Stainless steel
Finishing of the case
Brushed and polished, Zaratsu
Lugs
Stainless steel
Water Resistant
100 m
Diameter
39 mm
Case Length
45,5 mm
Case Thickness
12,3 mm
Lug Width
19 mm
Case features
Engraved back, Closed back, Screwed back
Crown
3 o'clock, Screw-down crown, Steel
Crystal
Breaks and scratches with difficulty, anti-reflective treatment, Domed, Sapphire crystal
Bezel
Fixed bezel, Bidirectional GMT Bezel
Bezel color
Grey
Bezel / Insert material
Steel
Dial
Sunray brushing
Dial color
Black
Marker
Stick pointer, Applied, Luminescent, Faceted
Dial type
1 time zone hand
Display
Analog, GMT, Date window
Lume
Lumibrite
Hands
Dauphine hands
Watch movement
Quartz, Manufacture quartz electronics
Movement model
9F86
Stones
9 jewels
Functions/complications
Date, GMT
Complications/functions
Fast date correction, GMT, Hours Minutes Seconds
Movement details
Battery life: 3-4 years
Strap materials
Stainless steel
Strap finish
Brushed, 3 rows mesh
Strap color
Steel
Buckle
Deployant clasp with push-buttons
Lug width
19
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Crystal
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Buckle
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Power reserve
72 hours
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SBGN021G
Brand Collection
Sport - Grand Seiko
Crystal
anti-reflective treatment Sapphire crystal
Functions (Bloc FP)
Quartz Sapphire crystal Date 5 year warranty Water resistance 200 m Steel bracelet
GRAND SEIKO
Reference
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Crystal
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Functions (Bloc FP)
Quartz Sapphire crystal Date 5 year warranty Water resistance 200 m Steel bracelet
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Reference
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Brand Collection
Sport - Grand Seiko
Crystal
anti-reflective treatment Sapphire crystal
Functions (Bloc FP)
Quartz Sapphire crystal Date 5 year warranty Water resistance 200 m Steel bracelet
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Reference
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Brand Collection
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Crystal
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Power reserve
72 hours
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