Oris Aquis GMT Date vs Seiko 5 Sports GMT SSK001

SpecificationOris Aquis GMT DateSeiko 5 Sports GMT SSK001
BrandOrisSeiko
CollectionAquis5 Sports
Reference01 798 7754 4135SSK001
CategoryGMTGMT
Movement TypeAutomaticAutomatic
CaliberOris 798 (Sellita SW330-1)Seiko 4R34
Power Reserve42h41h
Frequency28,800 vph21,600 vph
Case Diameter43.5mm42.5mm
Case Thickness13.8mm13.5mm
Case MaterialStainless SteelStainless Steel
CrystalSapphireHardlex
Water Resistance300m / 984ft100m / 328ft
Weight190g165g
MSRP$2,900$475
Market Price$2,300$425

In-Depth Comparison

The Oris Aquis GMT Date and the Seiko 5 Sports GMT SSK001 represent two compelling options in the luxury watch market. Both timepieces have earned devoted followings among collectors and enthusiasts, but they approach horology from distinctly different perspectives. Let's break down how these two watches compare across the key dimensions that matter most to buyers.

Heritage And Brand Prestige

Oris and Seiko are both highly respected names in watchmaking. The Oris Aquis GMT Date comes from Switzerland, while the Seiko 5 Sports GMT SSK001 originates from Japan. This particular Aquis reference was introduced in 2020, while this 5 Sports reference debuted in 2023. The Seiko 5 Sports GMT SSK001 is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the Oris Aquis GMT Date beats the Oris 798 (Sellita SW330-1) caliber offering a 42-hour power reserve running at 28,800 vph with 25 jewels. The Seiko 5 Sports GMT SSK001 is powered by the Seiko 4R34 with a 41-hour power reserve operating at 21,600 vph featuring 24 jewels. The Oris Aquis GMT Date wins on power reserve with a 1-hour advantage, which means less frequent winding for those who rotate watches.

Dimensions And Wearability

The Oris Aquis GMT Date features a 43.5mm case at 13.8mm thick with a 51.0mm lug-to-lug measurement, crafted in Stainless Steel. The Seiko 5 Sports GMT SSK001 comes in at 42.5mm and 13.5mm thick with 46.0mm lug-to-lug, constructed from Stainless Steel. The Seiko 5 Sports GMT SSK001 wears more compactly on the wrist, making it potentially more suitable for smaller wrists or those who prefer understated proportions. At 165g, the Seiko 5 Sports GMT SSK001 is the lighter of the two.

Materials And Construction

The Oris Aquis GMT Date uses a Sapphire crystal paired with a Bidirectional rotating, ceramic insert with 24-hour scale bezel, while the Seiko 5 Sports GMT SSK001 features Hardlex crystal with a Bidirectional rotating 24-hour bezel. On the wrist, the Oris Aquis GMT Date comes on a Stainless steel bracelet with Folding clasp with safety push-buttons, while the Seiko 5 Sports GMT SSK001 is fitted with Stainless steel bracelet featuring Three-fold clasp.

Water Resistance And Capability

The Oris Aquis GMT Date is rated to 300m / 984ft and the Seiko 5 Sports GMT SSK001 to 100m / 328ft. For serious diving or water activities, the Oris Aquis GMT Date offers a meaningful advantage.

Pricing And Value

At retail, the Oris Aquis GMT Date lists for $2,900 compared to $475 for the Seiko 5 Sports GMT SSK001. The Seiko 5 Sports GMT SSK001 is the more accessible option at MSRP, saving $2,425 at retail. On the secondary market, the Oris Aquis GMT Date trades around $2,300 while the Seiko 5 Sports GMT SSK001 commands approximately $425.

The Verdict

Choosing between the Oris Aquis GMT Date and the Seiko 5 Sports GMT SSK001 ultimately comes down to personal priorities. For diving and water sports, the Oris Aquis GMT Date is the stronger choice. for value-conscious buyers, the Seiko 5 Sports GMT SSK001 delivers excellent quality at a lower price point. Both watches are exceptional timepieces that will serve their owner well for generations. We recommend trying both on the wrist at an authorized dealer before making your final decision, as comfort and emotional connection are ultimately just as important as specifications.