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Seiko SKX007 Specifications
| Reference | SKX007K2, SKX007J1 |
|---|---|
| Case Size | 42.5mm |
| Lug Width | 22mm |
| Lug-to-Lug | 46mm |
| Thickness | 13.4mm |
| Case Material | stainless steel |
| Crystal | Hardlex |
| Water Resistance | 200m |
| Movement | 7S26 (automatic) |
| Bezel | rotating dive bezel |
| Crown | screw-down |
| Case Back | screw-down |
| Price Range | $200-$400 (secondhand) |
Compatible Straps for the Seiko SKX007
The SKX007 uses a 22mm Lug Width and is compatible with the following strap types.
| Type | Recommended Brand | Why It Works | Price Range | Link |
|---|---|---|---|---|
| NATO/ZULU | Strapcode | Classic look, easy to swap, fits 22mm lugs | $15–$80 | |
| rubber/silicone | Barton | Water-resistant, comfortable for daily wear | $15–$80 | |
| jubilee bracelet | Crafter Blue | Classic bracelet style, comfortable links | $15–$80 | |
| oyster bracelet | Uncle Seiko | Sporty bracelet, solid end links available | $15–$80 | |
| leather | Archer | Dresses up the watch, fits 22mm lugs | $15–$80 | |
| perlon | Crown & Buckle | Lightweight, breathable, adjustable fit | $15–$80 | |
| canvas | Strapcode | Casual, durable field-watch aesthetic | $15–$80 |
Replacement Parts for the Seiko SKX007
| Part | Description | Compatibility Note |
|---|---|---|
| crystal (Hardlex or sapphire upgrade) | Protective cover over the dial | Fits 42.5mm case |
| bezel insert | Outer ring marking | Matches rotating dive bezel configuration |
| chapter ring | Inner ring with minute markings | Specific to 42.5mm case |
| crown with stem | Time-setting knob on case side | screw-down type |
| spring bars | Pins that hold the strap to the case | 22mm, 1.5mm diameter recommended |
| case back gasket | Seal that maintains water resistance | Required for 200m WR rating |
| click spring | Spring that provides bezel rotation clicks | Fits 42.5mm case back |
Modding the Seiko SKX007
The SKX007 is a popular platform for modding. Here are the most common modifications.
- bezel insert — Swap the stock bezel insert for a ceramic, lumed, or differently colored option.
- crystal upgrade to sapphire — Upgrade the stock mineral/Hardlex crystal to a scratch-resistant sapphire crystal.
- chapter ring — Replace with a contrasting or lumed chapter ring for improved readability.
- dial swap — Install an aftermarket dial for a completely new look.
- strap/bracelet swap — Upgrade to a premium aftermarket strap or metal bracelet.
- movement upgrade to NH36 — Swap to an upgraded movement for hand-winding and hacking capability.
Frequently Asked Questions
What lug width is the Seiko SKX007?
The Seiko SKX007 has a 22mm lug width.
Can you put a NATO strap on an SKX007?
Yes. The SKX007 works with any 22mm NATO or ZULU strap. The spring bar gap is generous enough for most NATO thicknesses.
What crystal does the SKX007 use?
The stock SKX007 uses a Hardlex crystal. A popular mod is upgrading to a double-domed sapphire crystal for better scratch resistance and aesthetics.