More from Watch-Modz →SKX007 Case: Black MM300 3:00
$69.99
In stock at watch-modz.com
The Watch-Modz SKX007 Case: Black MM300 3:00 is a 42mm 316L steel case styled after the Seiko MarineMaster, finished in black with polished and brushed sides and a 3 o'clock crown. Unlike monobloc MM300-style cases, it accepts all OEM and aftermarket SKX007 parts, including the bracelet. It is rated to 200m like the original SKX.
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Highlights
- MarineMaster-inspired curved case in black, polished and brushed
- 42mm diameter, 47.7mm lug to lug, 10.7mm thick, 22mm lugs
- Fits all OEM and aftermarket SKX007 parts and bracelets
- Drilled lugs; 200m water resistance rating
- Includes bezel click spring, crystal gasket and case back gasket
Best for
A Seiko modder who wants a MarineMaster look but keep full SKX007 parts compatibility.
Things to consider
- Movement, crystal, bezel, dial, hands and crown are all sold separately.
- Water resistance depends on correct assembly and pressure testing after the build.
- Black coating can show wear on edges over time; the listing does not name the coating type.
Key specs
| Price | $69.99 |
|---|---|
| Material | 316L stainless steel |
| Diameter | 42mm |
| Lug to lug | 47.7mm |
| Thickness | 10.7mm |
| Lug width | 22mm |
| Water resistance | 200m |
| Crown position | 3:00 |
Our take
A popular, practical way to get the MM300 look on an SKX-based build.
SKX007 Case: Black MM300 3:00 at a glance
| Brand | Watch-Modz |
|---|---|
| Price | $69.99 |
| Type | Cases |
| Availability | In stock at watch-modz.com |
| Coupon | welcome |
| Returns | 30 days to return unused items in original packaging; the buyer pays return shipping and… |
Price check
At $69.99, the SKX007 Case: Black MM300 3:00 is toward the top of Watch-Modz's price range, whose 536 listed products run $6.99 to $155.99.
Similar items from other brands we track run $14 to $39.
Frequently asked questions
Will my SKX007 bracelet fit the MM300 case?
Yes. Watch-Modz says it fits all OEM and aftermarket SKX007 parts, including the bracelet.
Is this a monobloc case?
No. The listing notes it is not the monobloc version, so standard SKX parts fit.
How much is the SKX007 Case: Black MM300 3:00?
Watch-Modz lists it at $69.99 on watch-modz.com. We refresh prices throughout the day, but always confirm the final price at checkout.
Is there a coupon code for the SKX007 Case: Black MM300 3:00?
Watch-Modz's store-wide code welcome can be entered at checkout on watch-modz.com. Watch-Modz sets the discount, and some items or sale prices may be excluded.
What is Watch-Modz's return policy?
30 days to return unused items in original packaging; the buyer pays return shipping and sale items are non-refundable. Exchanges are for defective or damaged parts only, and lost packages are refunded after 30 days without delivery.
How long does Watch-Modz take to ship?
Orders ship within 1 to 3 business days, usually the same day, by USPS First-Class, USPS Priority or DHL Express. Worldwide shipping is available for a fee.
Where can I buy the SKX007 Case: Black MM300 3:00?
The SKX007 Case: Black MM300 3:00 is sold directly by Watch-Modz on watch-modz.com. The Shop now button on this page goes straight to the product there, and code welcome can be applied at checkout.
Is the SKX007 Case: Black MM300 3:00 in stock?
Yes. Watch-Modz lists it as in stock on watch-modz.com as of our latest check. Stock and prices refresh throughout the day.
Is Watch-Modz a legit store?
Watch-Modz is a strong one-stop shop for Seiko modders building on the SKX007 platform with NH35/NH36 movements, from sterile dials to sapphire crystals and complete cases. Skip it if you have never modded a watch and don't plan to use a watchmaker, since the store itself recommends professional installation. Confirm movement and case compatibility on every part before you order, because returns must be unused and you pay return shipping. Our full Watch-Modz review covers shipping, returns and what to check before ordering.
Is the SKX007 Case: Black MM300 3:00 expensive?
At $69.99 it is toward the top of Watch-Modz's range ($6.99 to $155.99 across 536 products), and similar items from other brands run $14 to $39.
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