Ethos Watch Boutiques

Grand Seiko Automatic Spring Drive 3-Day GMT

SBGE307G

*Currently out of stock

The Grand Seiko Automatic Spring Drive 3-Day GMT is a bold tribute to the brand’s enduring lion emblem, symbolising strength and precision. Its distinctive case design, with angular lugs inspired by a lion’s claws, exudes power while ensuring a comfortable fit on the wrist. A brilliant white dial sets the stage for the striking reddish-brown GMT hand, offering seamless dual-time functionality. The hands and indexes are coated with Lumibrite for optimal readability in low-light conditions. Designed for adventure, this robust timepiece boasts a formidable 20-bar water resistance, reinforcing its status as a true sports watch. At its core, the watch is driven by the Grand Seiko Spring Drive Calibre 9R66, renowned for its ±1-second-per-day accuracy and a 72-hour power reserve. The SBGE307G perfectly embodies Grand Seiko’s philosophy—uniting high precision with an imposing yet refined aesthetic.

Full Specification

  • CollectionSport
    SeriesN/A
    Model NoSBGE307G
  • Movement
    Features Date, GMT, Power Reserve Indicator
    Movement Spring Drive
    Calibre 9R66
    Case
    Case Size 44.5mm
    Case Thickness 14.9 mm
    Case Shape Round
    Case Material Titanium
    Case Back See-through Case Back
    Lug Width 23 mm
    Glass Material Sapphire Crystal
    Dial
    Luminosity On Hands, Hour Markers & Bezel
    Dial Colour White
    Indexes Baton
    Strap
    Strap Material Titanium
    Strap Colour Silver
    Clasp Type Triple Folding Clasp With Push Buttons
    Buckle/Clasp Material Titanium
    Other
    Gender Men
    Water Resistance (M) 200
    Warranty Period 5 Years
    Country of Origin Japan

About the Grand Seiko Sport Collection

The Grand Seiko Sport Collection represents the brand's commitment to combining rugged durability with sophisticated design. Launched to meet the demands of active lifestyles, this collection incorporates advanced technology and robust construction to ensure reliability under the most challenging conditions. The idea behind the Sport Collection is to offer timepieces that can withstand physical rigour while maintaining the precision and elegance that Grand Seiko are renowned for.

Design

An elegant yet dynamic attitude and attention to detail define the Grand Seiko Sport watches. They come with robust cases, some characterised by smoother curves, while others have more angular construction. The use of materials, such as stainless steel, titanium, and ceramic known for their strength and lightweight properties, showcase the collection's performance-driven attitude.

Like any Grand Seiko watch, the dials are exceptionally designed, featuring interesting textures, colours, and configurations. Also as effective sport watches, the Grand Seiko Sport models offer maximum legibility, often by incorporating Lumibrite for enhanced visibility in low-light conditions. An ergonomic construction facilitating easy operation is conspicuous on bezels, crowns, and pushers. The overall design balances sportiness with elegance, making these watches suitable for both adventurous activities and sophisticated settings.

Iterations

The Grand Seiko Sport collection features a variety of sport watches, including dive watches, GMT, and chronographs. One standout timepiece is the highly-precise chronograph SBGC201, driven by the brand's Spring Drive movement, showcasing a unique arrangement of sub-dials. Additionally, the collection includes another impressive chronograph with a more robust and sporty look, the SBGC223. The GMT watches in this collection are also noteworthy for their combination of performance and aesthetics, designed to be versatile for everyday wear.

Grand Seiko Sport

ABOUT THE MOVEMENT

Calibre 9R66 was released in 2006 as a GMT iteration of the popular 9R65, which is touted as the most standard 9R Spring Drive movement by Grand Seiko. It powers several GMT watches by the brand with an additional 24-hour hand and features additional functions like a power reserve indicator. It boasts 30 jewels, an automatic winding system, and approximately 72 hours of power reserve. 

9R66

    • Brand Grand Seiko
    • Reference 9R66
    • Movement Spring Drive
    • Display Analog
    • Power Reserve Approx. 72 hours
    • Jewels 30
    • Frequency 32768 bph

Similar Watches

Better Together

Special Offers

Trending Articles from The Watch Guide

View all