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Barrel 46mm Automatic

Koa Gunmetal

Regular price $379
$379 Regular price $495 Sale price

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Bourbon Leather Band - $49

  • Ships in 1 business day
  • Free returns in U.S.
  • 1 tree planted for each watch sold
  • Handcrafted Quality | Designed in USA
  • 1 year warranty



Wood: Reclaimed Hawaiian Koa

Steel: Gunmetal 316L Stainless Steel

Band: Steel

Dial: 34mm

Case Size: 46mm

Case Thickness: 12.75mm

Band Width: 23mm

Glass: Sapphire Crystal

Movement: Miyota 8N40 Automatic

Caseback: Skeleton (See Through)

Warranty: 1 Year

Specs and Details


Watch User Guide

Water Resistance: 5ATM

Date Function: N/A

Watch Functions: Sub-dial w/ Sweeping Second Hand

Dial Type: Skeleton

Hour Markers: Steel w/ Material Subeye

Bezel: Reclaimed Hawaiian Koa

Crown: Push Pull

Band Type: Wood & Stainless Steel

Band Materials: Koa Wood & Steel

Band Color: Gunmetal

Band Width (Attachment Width): 22mm



We offer a comprehensive 12-month manufacturer's warranty on all new watch and ring purchases, excluding final sale items. If the watch or ring proves to be defective in material or workmanship under normal use, it will be repaired or replaced free of charge at the discretion of the Original Grain Warranty Department. Learn More.

Shipping & Returns


All orders shipped in the United States are sent via FedEx or USPS; or a combination thereof.

During December, please allow 3-4 business days to process and ship the order once it has been placed.

Please note that Saturday and Sunday are not considered business days.

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Innovating Our Most Iconic Timepiece

Barrel 46mm Automatic

How do you take our all time best seller and make it even better? Well of course, you throw a premium automatic movement in it.

Witness The Inner Workings

Premium Miyota 8N40 Automatic Movement

Appreciate the upgraded movement’s beauty and distinctive motions through our see through caseback. Set with 21 jewels and holding a 42-hour power reserve.

The Story Behind Our Hawaiian Koa Wood

Ancient Hawaiians used it to sculpt images of their gods. It was the wood of choice when natives built outrigger canoes for their kings and queens. And today - centuries later - it remains one of the finest textured woods in the world. It is Koa, and it is Hawaiian royalty.

Koa Gunmetal Barrel Automatic 46mm

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