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SEIKO MarineMaster Professional 300M SEIKO “Tuna” Quartz Diver with a 48mm Case #SBBN017

This is a highly desired Seiko professional dive watch that is nicknamed the Tuna or Tuna Can. It features a 7-jewel, Seiko 7C46 movement that is accurate to within at least 15 seconds a month. Battery life is rated at 5 years. The watch is anti-magnetic, has a day and date display, highly luminous hands and markers treated with Lumibrite for awesome low light visibility, a screw down offset crown, a uni-directional diving bezel with luminous PIP at 12:00, a Hardlex crystal, and a solid etched, screw-down case back. The robust 48mm case includes a stainless steel shroud as added protection when diving. The SBBN017 model comes with an ample Seiko ribbed rubber dive strap with a buckle closer. Rated at 300 meters water resistance this watch can handle just about any diving adventure.

As-New Seiko TUNA BLACK DIAL SBBN017. This model is discontinued and No longer available from Seiko!

BRAND: Seiko

MODEL: SBBN017 – TUNA

MOVEMENT: JAPANESE QUARTZ

CASE: Stainless Steel

CROWN: Screw Down 

SIZE: 48mm

LUGS: 22mm

DIAL: Black Dial

BEZEL: rotating Diver

CONDITION: Pre-owned – Excellent!

BOXES/PAPERS: Watch plus additional brand new Seiko Black rubber dive strap, manual, Handmade Corrigia leather travel roll – everything as shown in pictures!

WATER RESISTANCE: – 300m

STRAP/BRACELET: – 2 – Original Seiko Black rubber dive strap with Stainless Steel buckle & Additional Brand New Seiko Black rubber dive strap with buckle

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