Does this watch need a battery?

No. It uses an automatic movement that winds itself from the motion of your wrist. When worn regularly, it stays powered without any battery or manual winding. If left unworn for more than 40 hours, you'll need to wind it manually or wear it to restart the movement.

Is the wood different on every watch?

Yes. The wood comes from reclaimed US military ammunition crates, so the grain pattern, color, and weathering vary between individual watches. Each dial and bracelet inlay is unique.

Can I swim with this watch?

No. The 5ATM water resistance rating means it can handle splashes, rain, and hand washing, but it is not designed for swimming, showering, or submersion.

How long will the watch run if I take it off?

The automatic movement has a 40-hour power reserve when fully wound. If you take it off after wearing it all day, it will continue running for up to 40 hours before stopping.

Can I have the case back engraved?

Yes, engraving is available on the case back. This makes it suitable for personalized gifts or commemorative inscriptions.

Will the 45mm case fit my wrist?

A 45mm case is considered large in watch sizing and suits wrist circumferences of about 7 inches or more. If you typically wear watches in the 38–42mm range, this will feel noticeably bigger and may overhang smaller wrists.

Military Rugged Automatic 45mm

Handmade
veteran owned
stainless steel
Recycled materials

The 3-second version

Self-winding automatic movement with 20 jewels and 40-hour reserve
Skeleton dial exposes the mechanical movement beneath
Reclaimed US military ammo crate wood inlaid in dial and bracelet
45mm case runs large on smaller wrists
Skeleton dial less legible at a glance
Not suitable for swimming or diving

Why it's on GiftsFeed

Automatic skeleton watch with reclaimed military ammo crate wood and stonewashed steel

Most automatic watches at accessible price points hide their movements behind opaque dials, or they show the mechanism but use generic materials. This one does both: you get the working gears on display and a dial built around salvaged military wood that carries actual history. The combination matters if you want an automatic that starts conversations instead of blending in.

The stonewashed steel and reclaimed crate wood give it a worn-in look from the start, so new scratches disappear into the finish rather than standing out. For someone who wants a mechanical watch that feels substantial and looks lived-in without decades of wear, this delivers both immediately.

Good gift when

Watch enthusiasts who appreciate visible mechanical movements
Veterans or those who value military heritage materials
People who want a self-winding watch that never needs a battery
Anyone looking for a substantial automatic with distinctive materials

Skip it if The 45mm case is large and sits tall on smaller wrists, and the skeleton dial with wood inlay makes it harder to read quickly than a traditional watch face.

Specs

Case diameter: 45mm
Case material: Dark stonewashed stainless steel
Movement type: Automatic, 20 jewels
Power reserve: 40 hours
Dial: Skeleton with military ammo crate wood inlay
Crystal: Sapphire
Band material: Stonewashed stainless steel with wood inlay
Water resistance: 5ATM
Lug width: 22mm
Engraving: Available

What's included

Military Rugged Automatic 45mm watch
Presentation packaging

If you're giving it

No sizing to guess
Can be personalised
Arrives ready to give

Engraving available on case back; arrives in presentation packaging.

The details

This 45mm automatic watch pairs a self-winding mechanical movement with materials salvaged from US military ammunition crates. The skeleton dial exposes the 20-jewel movement while incorporating strips of reclaimed wood, so every watch shows different grain patterns and weathering from its source material.

The case and bracelet combine dark stonewashed stainless steel with inlaid wood panels. Sapphire crystal protects the face. The automatic movement winds from the motion of your wrist and holds a 40-hour power reserve when fully wound, eliminating the need for batteries or manual winding during regular wear.

Water resistance reaches 5ATM, suitable for washing hands and rain but not swimming. The bracelet uses standard 22mm lugs, and engraving is available on the case back. Because the wood comes from actual military surplus crates, the color and grain of the inlaid panels vary between watches.

Built by a veteran-owned company, the design balances mechanical transparency with rugged materials. The stonewashed finish on the steel resists showing scratches, and the skeleton dial lets you watch the balance wheel oscillate and the gears turn. The watch arrives in presentation packaging.

Original Grain

Military Rugged Automatic 45mm

Self-winding 20-jewel movement with a 40-hour power reserve beneath a skeletal dial

$429at originalgrain.com

Quantity

Buy from Original Grain

Ships and sold by Original Grain. About this merchant

The 3-second version

Self-winding automatic movement with 20 jewels and 40-hour reserve
Skeleton dial exposes the mechanical movement beneath
Reclaimed US military ammo crate wood inlaid in dial and bracelet
45mm case runs large on smaller wrists
Skeleton dial less legible at a glance
Not suitable for swimming or diving

Questions

Does this watch need a battery?: No. It uses an automatic movement that winds itself from the motion of your wrist. When worn regularly, it stays powered without any battery or manual winding. If left unworn for more than 40 hours, you'll need to wind it manually or wear it to restart the movement.
Is the wood different on every watch?: Yes. The wood comes from reclaimed US military ammunition crates, so the grain pattern, color, and weathering vary between individual watches. Each dial and bracelet inlay is unique.
Can I swim with this watch?: No. The 5ATM water resistance rating means it can handle splashes, rain, and hand washing, but it is not designed for swimming, showering, or submersion.
How long will the watch run if I take it off?: The automatic movement has a 40-hour power reserve when fully wound. If you take it off after wearing it all day, it will continue running for up to 40 hours before stopping.
Can I have the case back engraved?: Yes, engraving is available on the case back. This makes it suitable for personalized gifts or commemorative inscriptions.
Will the 45mm case fit my wrist?: A 45mm case is considered large in watch sizing and suits wrist circumferences of about 7 inches or more. If you typically wear watches in the 38–42mm range, this will feel noticeably bigger and may overhang smaller wrists.