SpecStudio
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Seiko SKX009
Ref. SKX009 · Diver
$349Stock unknown
Case
- Diameter
- 42mm
- Thickness
- 13.4mm
- Lug-to-lug
- 46mm
- Lug width
- 22mm
- Material
- Stainless Steel
- Water resistance
- 200m
Crystal & dial
- Crystal
- Hardlex
- Dial colour
- Black
- Indices
- Applied
- Lume
- Hands and markers
Movement
- Caliber
- Seiko 7S26
- Type
- Automatic
- Beat rate
- 21,600 vph
- Power reserve
- 40h
- Jewels
- 21
Seiko
Seiko's legendary budget automatic caliber that powered the original Seiko 5 line and SKX diver series for decades. Lacking hacking and hand-winding, it is mechanically simple with just 21 jewels, but this simplicity contributed to its remarkable durability and low maintenance requirements. Now discontinued in favor of the NH35/4R35, the 7S26 remains one of the most iconic and beloved movements in affordable horology.
The market
Market prices.
Retail$349
eBay listings
- Seiko 5 Sports SKX0093 Automatic Diver 21 Jewels Wristwatch Day Date Japan MadeSeller refurbished · AE$300
- *Near MINT* SEIKO 5 7S26-0020 SKX009 PEPSI Scuba 200m Men's AT Watch JAPAN #120Pre-owned - Good · JP$400
- Rare Seiko 5 SKX009 Automatic Diver Black Dial Pepsi Day Date Sport Watch MenPre-owned - Good · ID$429
Lowest displayed prices first.
Matched listings from our latest checks; eBay may show additional results. We may earn a commission through these links at no extra cost to you.
Retail stock & market context
Seiko on the secondhand market
+8.1%
2026 so far · +3.6% to +12.7% · 80 matched watches
In line with the index
Divers as a group: +6.3% · 305 matched watches
Year-by-year readings →The connection engine
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The community take
Owners talk.
In a nutshell
The Seiko SKX009 (ref. SKX009) is an automatic diver watch, with a 42mm stainless steel case, 13.4mm thick, powered by the Seiko 7S26 movement and a 40-hour power reserve. Water resistance is rated to 200m, under a hardlex crystal. Manufacturer MSRP is $349.
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The paper trail
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