/ / / Seiko Marinemaster MM300 Reference SBDX001 NWW 2007

Seiko Seiko Marinemaster MM300 Reference SBDX001 NWW 2007

Seiko Marinemaster MM300 Reference SBDX001

Seiko Marinemaster MM300 model reference SBDX001 with boxes and papers from 2008. Serviced by Duncan (The Watch Bloke) in 2020 who is renowned within the worldwide Seiko community. The service paperwork is in the box. This is the classic Seiko MM300 with the cream coloured hand applied lume and no Diashield. It is keeping time to around +5 seconds a day with a low beat error. The bezel action was adjust professionally so that is now perfect. It comes with the original Seiko bracelet, Seiko rubber strap and a replacement rubber strap, the photos on rubber strap show it on the replacement. The movement is 8L35 movements, 26 Jewels. Seiko have discontinued with the Marinemaster name, so this could be a future collectible especially as it is a Japanese domestic market model only.

Stainless steel Case Material
Stainless steel Band Material
Diamond Shield case coating
Extra Polyurethane band included
Rotating bezel
Monobloc case
Screw lock crown
Date display
Dual Curved Hardlex glass with anti-reflective treatment
Second hand stop function
300 m Water Resistant
Anti-magnetic
8L35 Caliber
26 Jewels
Automatic Mechanical (with manual winding)
44 mm wide, lug to lug is 50 mm
15 mm Case Thickness
22 mm Band width
214 g weight

Key Characteristics

Brand: Seiko
Band: Rubber Strap
Case Material: Steel
Condition: Mint
Movement: Automatic
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