A Seiko Tuna SBBN031 in great condition, only worn a handful of times, comes with original strap and Uncle Seiko rubber strap.

• Condition: Great condition
• Previous ownership: Bought used from another forum member

This Seiko SBBN031 Tuna has been recently serviced and comes with a fresh battery, gaskets, and blue sapphire crystal. The bracelet is sized but unworn.

• Condition: Pre-owned, some minor marks on titanium shroud
• Battery condition: fresh
• Gasket condition: new

This is a Seiko Tuna 300m Professional diving watch with a hi-torque 7C46 quartz movement and domed Hardlex crystal. It features excellent lume and an on-the-fly ratcheting extension.

• Condition: unworn, pristine condition
• Movement: hi-torque 7C46 quartz
• Crystal material: Hardlex
• Depth rating: 300m

This Seiko Marinemaster SBBN031 is a unique and comfortable watch, with a great shape and minimal scratches. It's perfect for daily wear, weighing smaller than expected.

• Condition: Excellent, with some wear on the bracelet and titanium clasp
• Bracelet wear: some wear
• Clasp material: titanium
• Included strap: FKM strap from StrapHabit

A Seiko Marine Master Professional 300M Tuna, a high-end diver's watch with a reputation for reliability and style. The SBBN031 model features a 48mm case diameter, making it a substantial watch on the wrist.

• Condition: Worn but looked after
• Case size: 48mm diameter
• Water resistance: 300m

A Seiko Marine Master Professional 300M Tuna, SBBN031, in 48mm diameter. The watch has been worn but well looked after, with some minor scratches and snails on the case.

• Condition: Used, with normal wear and minor scratches on case and case back
• Case Size: 48mm diameter
• Water Resistance: 300m