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$ 1,023

Prospex Tuna Marinemaster Professional Quartz Diver 300M

  • 1 year official warranty
  • Battery Powered Quartz Movement
  • Caliber 7C46
  • Stainless Steel Case with diamond shield
  • Diamond Shield Case Coating
  • Stainless Steel Band
  • Dual Curve Glass Material
  • Lumibrite Visibilty increased by 60% of the previous model
  • ± 15 seconds per month Accuracy
  • 300m Waterproof for saturation diving
  • 5 Years Battery Life
  • Antimagnetic
  • 47.7mm × 47.7mm × 14.7mm Size
  • 189g
  • Screw Back
  • Rotating Bezel
  • Screw Lock Type Crown
  • Unique L-shaped Packing Structure
  • 4:00 Position Crown
  • 3 Push 1 Fold Clasp


SEIKO Prospex SBBN031 Specifications : 

Driving systemQuartz
Caliber Number7C46
CaseStainless steel case
Case coatingDia shield
GlassDual-curved glass
Lumi BriteHands and indexes
Accuracy±15 seconds per month
Water resistance300m water resistance suitable for saturation diving
Magnetic reluctanceMagnetic resistance
SizeH47.7mm x W47.7mm x D14.7mm


SEIKO Prospex SBBN031 Features : 

  • Screw case back
  • One-way bezel
  • Screw down crown
  • Double-lock clasp with push button release

Additional information

Weight1 kg
Dimensions5 × 5 × 2 cm

Service Center

Center NameAddressTelFax
Seiko Service Center JakartaJalan Melawai IX No. 46, Blok M, Jakarta Selatan, Indonesia+62-21-7208717+62-21-7201249
Seiko Service Center JakartaPlaza Senayan Lt 3 No. 353-A, Jakarta Pusat, Indonesia+62-21-5725689


Seiko Service Center JakartaLt Dasar No. 115-116, Gd. Harco Pasar Baru, Jakarta Pusat, Indonesia+62-21-3452335
Seiko Service Center SurabayaJalan Tunjungan No. 98-100, Surabaya, Indonesia+62-31-5474756


Seiko Service Center SurabayaPlaza Surabaya, Lt 1 No. 56-57, Surabaya, Indonesia+62-31-5316199
Seiko Service Center MedanJalan Cirebon No. 16, Medan, Indonesia+62-61-4149636
Seiko Service Center MedanSun Plaza Level 1, Blok C-32, Medan, Indonesia+62-61-4501505

Water Resistance

Water Resistant Chart

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