The Seiko MarineMaster SBDX017 is a high-end dive watch with a Diashield coating, ceramic bezel, and 44mm diameter case. It features a monocoque design, COSC-standard timekeeping, and up to 50 hours of power reserve.

• Condition: Like new, never polished
• Caliber: 8L35
• Diameter: 44mm
• Water resistance: 300m

The Seiko Marinemaster SBDX017 is a highly regarded dive watch with a robust build, reliable movement, and exceptional finishing. It features a hard-coating, 300m water resistance, and a Zaratsu finish from Grand Seiko.

• Condition: Very Good Condition
• Movement: Seiko 8L35 (undecorated Grand Seiko's automatic movement)
• Water resistance: 300m
• Crystal: Sapphire crystal

The Seiko MarineMaster 300M model SBDX017 is a legendary watch with a short production run, known for its Zaratsu polished and DiaShield coated case. It has a glossy enamel bezel in fantastic condition and a flawless crystal.

• Condition: Fantastic condition
• Case size: 42mm
• Movement: Calibre 8R64
• Bezel material: Gloss enamel

A rare Seiko MarineMaster MM300 300M model with a short production run, featuring a Zaratsu polished and DiaShield coated case. The watch has a glossy enamel bezel and runs flawlessly.

• Condition: Fantastic Condition
• Case material: Stainless Steel
• Band size: 7.2 inches (no additional links)
• Water resistance: 300M

A well-maintained Seiko Marine Master 300, serviced in January and running smoothly. It has a minor mark on the bezel insert but looks great on the wrist.

• Condition: pre-owned, minor surface swirls
• Service history: serviced by Seiko service center in January
• Box and papers included: yes
• Extra straps included: Crafter Blue Strap (black) and rubber single pass nato

A Seiko Marinemaster 300 SBDX017 is being sold. It has drilled lugs and comes with various accessories.

• Condition: Pre-owned
• Lugs: drilled
• Bracelet: OEM diashield
• Strap: OEM rubber

A 2016 Seiko MarineMaster SBDX017 with a complete movement overhaul and new crystal, presented in fantastic condition.

• Condition: Mechanically 100%, Cosmetically 90%
• Movement Overhaul Year: 2016
• Servicing Location: Seiko service center in NJ