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Rugged Automatic 44mm

Koa Gunmetal

Regular price $349
$349 Regular price Sale price

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  • 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



The Koa Rugged Automatic features a highly accurate ST1701 automatic movement with a skeleton dial, 40-hour power reserve, and 20 jewels, as well as an ultra-durable sapphire crystal glass cover. Made with finely brushed Gunmetal steel and natural Hawaiian Koa wood.

Wood: Hawaiian Koa

Steel: Gunmetal 316L Stainless Steel

Band: Koa and Brushed Steel

Dial: 33mm

Case Size: 44mm

Case Thickness: 10.2mm

Band Width: 21mm

Glass: Sapphire Crystal

Movement: Automatic Seagull ST1701

Power Reserve: 40 Hrs

Jewels: 20

Caseback: Skeleton

Warranty: 1 Year

Specs and Details


Water Resistance: 5ATM

Digital Function: Automatic Seagull ST1701

Functions: Automatic

Hour Markers: Applied Markers

Bezel: Koa Wood Bezel Encased With Steel Case

Crown: Push Down

Band Type: Koa Wood & Stainless Steel

Band Materials: Koa Wood & Steel

Band Color: Gunmetal

Band Width (Attachment Width): 21mm



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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Where Mechanics & Nature Collide

Rugged Automatic 44mm

Built with an a premium ST1701 automatic movement, this timepiece features a skeleton dial allowing you to enjoy the inner workings of the mechanical movement. With a 40 hour power reserve, and sapphire crystal glass, your next watch is not just a work of art but a symbol of your dedication to the planet. Elevate your wrist game.

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 Rugged Automatic 44mm

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