Seiko Gmt Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Seiko Gmt sales on Amazon US totaled 16,150 units in July 2026 (▼ 3.0% vs. the prior month), generating an estimated $1,161,507 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 91.6% of unit volume and 60.5% of revenue, while a typical listing is priced at $286.02. The keyword itself pulled 21,900 Amazon queries over the same period (▼ 12.5% MoM).
Zooming out to the 12-month window ending July 2026, the seiko gmt Top 50 moved 190,600 units and $12,559,339 in cumulative sales — an average of 15,883 units and $1,046,612 per month. Monthly throughput topped out at 21,050 units in December 2025 and dipped to 9,650 in May 2026, leaving the latest reading 3.5% higher than August 2025.
Seiko Gmt Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
16.1K
▼ 3.0% MoM
Monthly Revenue 2026/07
$1.2M
▼ 11.4% MoM
Top 10 Market Share 2026/07
91.6%
Seiko Gmt Market Share & Sales Concentration on Amazon US — July 2026
The most-sold seiko gmt listing on Amazon US in July 2026 is ASIN B09MK72YFD (Brand: Jorest), which sold 10,000 units at $13.99 apiece — equal to 61.9% of every unit tracked in this report and 5.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 14,800 units and $702,908 in July 2026 — 91.6% of unit volume and 60.5% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Seiko Gmt' on Amazon
July 2026
Is 91.6% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B09MK72YFD
JOREST Watch Repair Kit for Battery Replacement & Link Removal, Resizing &Opener, Watch Repair and Cleaning Screwdriver Set, Wrench Back Remover, Spring Bar Tool
10K
▲ 0.0%vs. prior month
$141.2K
latest month
12-month trend
B0094B79CI
Casio AE1200WH Series | Men’s Digital Watch | 100M WR | Multi Alarms | 100 SEC Stopwatch | Countdown Timer | World Map for World Time | LED Light | LC Analog Display | 10 Year Battery
2K
▲ 0.0%vs. prior month
$86.5K
latest month
12-month trend
B009KYJAJY
Casio MDV106 Series | Unisex Analog Watch | 200M WR | Stainless Steel Case | Resin Band | 2 Hand Analog (HR, Min, SEC) | Date Display | Screw Down Crown/Screw Down Caseback | 3 Year Battery
1K
▲ 0.0%vs. prior month
$65.9K
latest month
12-month trend
B016R90WIW
CITIZEN Men's Eco-Drive Weekender Garrison Field Watch in Stainless Steel, Black Dial, Arabic Markers, Luminous, 43mm (Model: AW0050-82E)
600
▲ 0.0%vs. prior month
$88.2K
latest month
12-month trend
B0B6KWJ4KJ
SEIKO SSK001 Automatic Watch for Men - 5 -Sports - Black Dial with Date Calendar and Luminous Hands & Markers and Black & Gray GMT Bezel, 100m Water-Resistant
300
▲ 50.0%vs. prior month
$119.1K
latest month
12-month trend
B07NQLSVXF
SEIKO 5 Automatic Black Eastern Arabic Dial Men's Watch SNKP21J1
300
▼ 25.0%vs. prior month
$55K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Seiko Gmt Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Jorest is the best-performing seiko gmt brand in July 2026, moving 10,000 units across 1 ASIN for 67.6% of Top 10 volume. Casio follows with 3,000 units (20.3%), ahead of SEIKO on 1,000 units (6.8%).
With 4 brands splitting the Top 10 and 94.6% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $13.99 to $250.62, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Jorest
1 ASIN in Top 10
67.6%
Units
10K
Revenue
$141.2K
Avg. price
$13.99
B09MK72YFD
$13.99·★4.6·24.1K revsJOREST Watch Repair Kit for Battery Replacement & Link Removal, Resizing &Opener, Watch Repair and Cleaning Screwdriver Set, Wrench Back Remover, Spring Bar Tool
Units sold10K
Casio
2 ASINs in Top 10
20.3%
Units
3K
Revenue
$152.5K
Avg. price
$60.61
B0094B79CI
$54.95·★4.6·14.9K revsCasio AE1200WH Series | Men’s Digital Watch | 100M WR | Multi Alarms | 100 SEC Stopwatch | Countdown Timer | World Map for World Time | LED Light | LC Analog Display | 10 Year Battery
Units sold2KB009KYJAJY
$66.26·★4.7·32.1K revsCasio MDV106 Series | Unisex Analog Watch | 200M WR | Stainless Steel Case | Resin Band | 2 Hand Analog (HR, Min, SEC) | Date Display | Screw Down Crown/Screw Down Caseback | 3 Year Battery
Units sold1K
SEIKO
5 ASINs in Top 10
6.8%
Units
1K
Revenue
$263K
Avg. price
$250.62
B0B6KWJ4KJ
$396.00·★4.6·474 revsSEIKO SSK001 Automatic Watch for Men - 5 -Sports - Black Dial with Date Calendar and Luminous Hands & Markers and Black & Gray GMT Bezel, 100m Water-Resistant
Units sold300B07NQLSVXF
$196.90·★4.4·611 revsSEIKO 5 Automatic Black Eastern Arabic Dial Men's Watch SNKP21J1
Units sold300B0977H56NT
$252.00·★4.4·398 revsSEIKO Men's SRPG35 Watch, Black Dial, 41-Hour Power Reserve, Stainless Steel Case, Nylon Strap, Water-Resistant
Units sold200B00189VBSM
$229.99·★3.9·1.8K revsSEIKO Men's Watches 5 SNKE03-4
Units sold100B00820EXJO
$178.20·★4.3·493 revsSEIKO 5 Automatic Black Arabic Dial Stainless Steel Men's Watch SNK063J5
Units sold100
Trending Seiko Gmt Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B00189VBSM booked 100 units at $229.99, with ▲ 0.0% MoM change. On the growth side, B0B6JVCYMN leads positive momentum with ▲ 100.0% MoM growth on 100 units, with B0B6KWJ4KJ close behind at ▲ 50.0% MoM on 300 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B00189VBSM
SEIKO Men's Watches 5 SNKE03-4
Price
$229.99
Rating
3.9
Reviews
1.8K
Latest month sales
B0B6JVCYMN
SEIKO SSK003 Automatic Watch for Men - 5 -Sports - Blue Dial with Date Calendar and Luminous Hands & Markers and Black & Blue GMT Bezel, 100m Water-Resistant
Price
$396.00
Rating
4.5
Reviews
520
Latest month sales
B0B6KWJ4KJ
SEIKO SSK001 Automatic Watch for Men - 5 -Sports - Black Dial with Date Calendar and Luminous Hands & Markers and Black & Gray GMT Bezel, 100m Water-Resistant
Unlock to view ASIN details and product titles
Price
$396.00
Rating
4.6
Reviews
474
Latest month sales
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