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The Grand Seiko Quartz GMT Sport is a stainless steel wristwatch with Zaratsu polishing, a black dial with silver hour markers, date window at 4 o’clock, and a metal bracelet band.
The Grand Seiko Quartz GMT Sport is a stainless steel wristwatch with Zaratsu polishing, a black dial with silver hour markers, date window at 4 o’clock, and a metal bracelet band.

Grand Seiko Quartz GMT Sport

SBGN027 39 mm
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Regular price $3,400
Starting at /mo or 0% APR with Affirm .

This product is only available within the United States.

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Authorized Luxury Retailer
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Renowned for expertise in luxury watch retail, Watches of Switzerland embodies the highest standards of craftsmanship and service. With a history dating back to the 1700s, the company offers a curated selection of premier timepieces and commits to excellence in customer experience grounded in a legacy of trust and industry proficiency.

Authorized Luxury Retailer

Authorized Luxury Retailer

We are an authorized retailer for over 80 luxury watch brands.
Free Expedited Delivery
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Free Expedited Delivery on Orders $100 and Up (Estimated 1-3 Days)

Our secure shipping service operates Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For security reasons, an adult signature is required for every delivery. Watches of Switzerland does not deliver to P.O. boxes or third-party forwarding services. For more information about delivery, click here. Tracking information will be made available upon shipping.

$15 Flat Fee on Orders Under $100 (Estimated 1 - 2 weeks)

Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For more information about delivery, click here. Tracking information will be made available upon shipping.

If you have any questions or concerns regarding your order, please contact the Watches of Switzerland Client Services. 

Free Expedited Delivery

Free Expedited Delivery

We offer free, expedited delivery on all orders over $100.
Simple Easy Returns
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Our commitment to you does not end at delivery. We offer the following return services to make your experience as pleasant as possible.

10-Day Returns For Timepieces:

Timepieces purchased online can be returned or exchanged within 10 days from when they are shipped or collected.

30-Day Returns For All Other Purchases:

All other online purchases can be returned or exchanged within 30 days from when they are shipped or collected.

On presentation of the original receipt, your purchases may be returned or exchanged at any of our store locations. Alternatively, you may elect shipping to our facility with all the original paperwork. All refunds must be credited to the same tender used for the original purchase. To return the online purchases through secure shipping service, please contact our client service team who will provide you the shipping label.

All returns or exchanges must be in new, unworn condition, with no scratches or markings, not sized or adjusted and in their original packaging and with warranty cards / certificated and instruction booklets.

Simple Easy Returns

Simple Easy Returns

Purchase with confidence with our simple, free return policy.

Details

This sports timepiece demonstrates the essential qualities of Grand Seiko: accuracy, beauty, legibility, durability and ease of use. The case is a classic slim design for a comfortable fit, its surface features a finely brushed hairline finish – a skill perfected by Grand Seiko craftspeople – contrasting the signature Zaratsu mirrored polishing. This watch is powered by the in-house 9F86 Quartz calibre adjusted to an accuracy of -/+ 10 seconds per year. Every quartz crystal has different performance characteristics, but only the most accurate are picked for Grand Seiko 9F movements. Grown in-house, aged and rigorously tested over a 3 month period, this ensures only the best quartz oscillators are crafted into each timepiece. Calibre 9F delivers long-lasting high performance through innovation: the instant Date Change Mechanism swiftly changes the date display; the torque is comparable to a mechanical movement allowing easy-to-read wider and longer hands; the Second hand precision achieves positional accuracy on the dial against the markers; and the sealed structure means high retention of lubricating oils. The screw-lock crown means the watch maintains excellent airtightness with a 20 bar water-resistance, as well as durability. Its powerful hands and grooved, prominent markers with LumiBrite ensure high legibility, whilst the contrast created by the upper and lower two-toned dial rings indicates if the GMT hand time is day or night. Grand Seiko: beautifully precise Japanese watchmaking, handcrafted by Takumi artisans.

General

Condition

New

Brand

Grand Seiko

Reference

SBGN027

Product Code

18400381

Features

Deployment clasp
Quartz movement
Waterproof

Case

Case Size

39 mm

Case Depth

12.5 mm

Case Shape

Round

Case Material

Steel

Bezel Material

Steel

Bezel Color

Silver

Crystal

Sapphire

Dial

Dial Color

Black

Dial Texture

Plain

Dial Markers

Baton

Stone Set

No

Movement

Type

Quartz

In-house Movement

Yes

Bracelet

Type

Bracelet

Stone Set

No

Buckle

Deployment