- 42.5 mm case
- 100 m water resistant
Black Friday · Through November 30
Extra 10% off all watches
Use the code at checkout on every watch, sale prices included.
Code
WATCH10
Online only, through November 30, 2026 at 11:59 pm PT. One discount code per watch.
Seiko - Brand New
Seiko 5 Sports SKX GMT- SSK021
Sale price
$396.00
Regular price
$495.00
Sold out
Shipping calculated at checkout.
About this timepiece
Truly distinctive, the Seiko 5 Sports SKX GMT (ref. SSK021) is a proud U.S. Special Creation that holds its place as the first SKX design with a two-tone case. Its charcoal gray dial carries a large GMT hand for tracking a second time zone, all inside a 24-hour GMT bezel finished in two colors. Luminous hands and markers keep the time visible in low light, and a magnified date calendar keeps the date close at hand.
Seiko's caliber 4R34 automatic GMT movement drives the hands with 24 jewels at 21,600 vibrations per hour and approximately 41 hours of power reserve, and it can be wound by hand whenever needed. The two-tone stainless steel case measures 42.5mm, with a Hardlex crystal on top and a screw-down see-through case back underneath, and it is water resistant to 10 bar, 100 meters (330 feet). A stylized five-row stainless steel bracelet with a tri-fold push-button clasp and secure lock completes this standout piece.
Features
- Two-tone stainless steel case – no SKX design before it offered a case in two tones.
- Large GMT hand – follows a second time zone across the charcoal gray dial.
- Bi-color 24-hour GMT bezel – frames the dial with a 24-hour scale.
- Caliber 4R34 automatic GMT – 24 jewels and approximately 41 hours of power reserve, with manual winding.
- Magnified date calendar – an easy-to-read date joined by luminous hands and markers.
Specifications
- Reference: SSK021
- Collection: Seiko 5 Sports SKX GMT U.S. Special Creation
- Gender: Men's
- Movement: Automatic GMT with manual winding capability
- Caliber: 4R34
- Vibrations: 21,600 vibrations per hour
- Jewels: 24
- Power Reserve: Approximately 41 hours
- Functions: GMT hand for a second time zone, magnified date calendar
- Case Material: Two-tone stainless steel case
- Diameter: 42.5 mm
- Thickness: 13.6 mm
- Length: 46 mm
- Lug Width: 22 mm
- Dial Color: Charcoal gray
- Crystal Material: Hardlex crystal
- Luminous: Luminous hands and markers
- Strap: Stainless steel stylized five-row bracelet
- Clasp: Tri-fold push button release clasp with secure lock
- Water Resistance: 10 bar, 100 meters (330 feet)
- Features: Bi-color 24-hour GMT bezel, screwdown see-through caseback
Timepiece History
Seiko's story began in 1881, when a 21-year-old entrepreneur, Kintaro Hattori, opened a shop selling and repairing watches and clocks in central Tokyo. The first watch to carry the Seiko name followed in 1924, and Seiko went on to introduce a long line of watchmaking firsts, including the Quartz Astron, the world's first quartz wristwatch, on December 25, 1969. In 2024, Seiko celebrated the 100th anniversary of the Seiko brand.
The SSK021 belongs to Seiko 5 Sports, a collection rooted in the Seiko Sportsmatic 5 of 1963, Japan's first automatic day-date watch. Seiko 5 Sports itself was born in 1968, adding enhanced water resistance, a strengthened crystal and luminous hands and markers to the Seiko 5 essentials of an automatic movement, a day-date display, water resistance, a recessed crown and a durable case and bracelet, and it found worldwide favor as a go-anywhere watch. In 2019, Seiko 5 Sports was rebranded to carry watch culture forward to the next generation. Its design follows the SKX series, the successor to the watch widely known as the "SKX," a watch loved around the world. As a U.S. Special Creation, the SSK021 debuted exclusively in the United States before Seiko extended it to select markets across the globe.
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Payment options
Pay over time with Shop Pay, PayPal, or lease-to-own.
See all financing options, including Synchrony Luxury in storeShop Pay Installments Split your purchase into installments
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At checkout, choose Shop Pay, then Pay in installments. You'll see your exact plan before you confirm.
PayPal Pay Later Pay in 4 or Pay Monthly
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At checkout, choose PayPal, then Pay Later. PayPal shows your exact plan before you confirm.
Lease-to-own · Acima or Progressive No credit needed* · 90-day purchase option
Lease-to-own is not a loan or credit, so there's no APR. Your payment amount and schedule are set in your lease agreement and depend on your state and pay schedule. The lowest-cost way to own is the 90-day purchase option.
Acima Leasing
- Approvals up to $5,000
- 90-day early purchase option (3 months in CA)
- Own in 12, 18 or 24 months
- Payments set around your payday
Progressive Leasing
- No credit needed*
- 90-day purchase option (3 months in CA)
- 12 months to ownership
- Weekly, bi-weekly or monthly payments
Apply above to see your approval amount, or choose Acima or Progressive Leasing at checkout to apply and sign your lease in minutes. Questions? Call us at 661-861-8414.
Estimates & disclosures
Estimates are based on the item price shown, before tax, shipping and any personalization charges, and use the same estimated rates each provider shows in its own payment estimates. Your actual plan, rate and payments are set by the provider when you apply. All options are subject to an eligibility check and approval.
Shop Pay Installments: Rates from 0–36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.
PayPal Pay Later: Pay in 4 is interest-free and available for eligible purchases of $30–$1,500. Pay Monthly is an interest-bearing installment loan issued by WebBank for eligible purchases of $49–$10,000, with terms of 3 to 24 months depending on purchase amount and a fixed APR of 0%–35.99% based on creditworthiness. Subject to consumer credit approval. Pay Monthly is currently not available to residents of AK, CT, HI or WA. Pay in 4 is currently not available to residents of MO. See PayPal terms.
*No credit needed: lease providers may obtain information from consumer reporting agencies. Not all applicants are approved.
Acima: The advertised transaction is a rental-purchase agreement (rent-to-own agreement, consumer rental-purchase agreement or a lease/lease-purchase agreement, depending on your state) with Acima. Ownership is optional. You will not own the merchandise until the total amount necessary to acquire ownership is paid in full or you exercise your early purchase option. Acquiring ownership by leasing costs more than the retailer's cash price. "Approvals up to $5,000" refers to the maximum amount Acima will spend to acquire goods from a retailer for lease to you. Not available in MN, NJ, WI or WY.
Progressive Leasing: The advertised service is lease-to-own or a rental- or lease-purchase agreement provided by Prog Leasing, LLC, or its affiliates. Acquiring ownership by leasing costs more than the retailer's cash price. No credit needed: Progressive Leasing obtains information from credit bureaus. Not all applicants are approved. Standard agreement offers 12 months to ownership. 90-day purchase options cost more than the retailer's cash price (except 3-month option in CA). Not available in MN, NJ, VT, WI or WY.
- Authorized Seiko retailer
- Manufacturer warranty
Care Instructions
Daily Care
• Wipe the case and bracelet with a soft microfiber cloth after wear to remove oils, dust, and fingerprints.
Cleaning
• Use a soft cloth lightly dampened with water and mild soap for occasional cleaning.
• Dry the watch thoroughly with a clean, soft cloth.
What to Avoid
• Avoid bleach, chlorine, harsh chemicals, abrasive cleaners, and household cleaning products.
• Do not use polishing compounds unless specifically recommended by the watch manufacturer.
Stainless Steel and Titanium
• Light surface marks may develop over time with normal wear.
• Titanium can show cosmetic marks differently than stainless steel because of its lighter weight and surface characteristics.
Water Resistance
• Always follow the water resistance rating listed by the manufacturer for your specific watch.
• Water resistance is not permanent and can decrease over time as seals and gaskets age.
• Make sure the crown is fully pushed in or screwed down before water exposure.
• Do not operate the crown, pushers, or other controls while the watch is underwater unless the manufacturer specifically states that it is safe to do so.
• Avoid hot tubs, saunas, and very hot showers, as heat and rapid temperature changes can affect the watch seals.
• Have the water resistance checked periodically, especially after battery replacement, case opening, or service.
Storage
• Store your watch in a clean, dry place when not in use.
• Keep it separated from other jewelry or watches to help prevent scratches.
