The Seiko Prospex MM300 features a Zaratsu-polished case, sapphire crystal, 300m water resistance, and the in-house 8L35 movement. The dial is a deep blue that shifts beautifully in different light, paired with sharp hands and markers that glow brightly.

• Condition: Great condition with some light scratches on case and very minimal on bracelet
• Case size: 44mm
• Lug to lug: 50mm
• Thickness: 15mm

This Seiko MarineMaster 300, reference SLA023, features a Zaratsu polishing finish and is equipped with an OEM bracelet and Crafter Blue Rubber strap. It has minor hairline scratches but is otherwise in great condition.

• Condition: great condition, hairline scratches on case and bracelet
• Bracelet length: 6.75"
• Case diameter: not specified
• Water resistance: 300m

Seiko SLA023 MarineMaster 300, a basically brand new watch from the AD with full warranty.

• Condition: Brand new, perfect shape
• Purchase date: 8/15
• Warranty period: 3 years

2023 Seiko Prospex Automatic MarineMaster 300 MM300 for sale. Comes with box, papers, and warranty card. Asking $1,900 USD shipped from Singapore.

• Condition: Great condition with little to no signs of use
• Year: 2023
• Model Number: MM300

The Seiko Prospex SLA023, part of the Marine Master line, features a high-grade automatic movement and a visually striking deep sunburst navy blue dial. The monobloc stainless steel case delivers 300m of professional dive capability.

• Condition: Excellent preowned condition
• Movement: 8L35
• Case material: Stainless Steel
• Diameter: 40mm

The Seiko SLA023 MarineMaster 300 is a blue dial diver that has been well-maintained and comes with various accessories. It features a scratch-free sapphire and ceramic bezel.

• Condition: Pre-owned with minor scratches and dings
• Case size: 45mm
• Bracelet material: Metal