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This NBR rubber watch band with a curved end lug perfectly fit SEI MM300 Prospex Marinemaster SBDX001 / SBDX003 / SBDX005 / SBDX017 models, etc. The lug of this watch band was tapered into 18mm buckle size, added value on flexibility of using your original 18mm SEI MM300 buckle. NBR rubber has superior strength and more resistant than natural rubber to oils and acids. Material has met the RoHS requirements and rarely causes severe allergic reaction. Cut to size to fit most wrists. Accompany with ratchet buckle clasp which is an ideal wetsuit watch band buckle. The ratchet theory extension mechanism is of great importance both for convenience and for safety. This item also includes one pair of FAT spring bars (eg. generic SEI Dia. 2.5mm spring bar) to ensure a more secure connection. NBR rubber watch band is a good choice of SEI replacement watch band for your MM300 Prospex Marinemaster SBDX001 / SBDX003 / SBDX005 / SBDX017 models.

Item no. : CB03A-20A18B17
Brand Name: Crafter Blue
Lug width: 20mm
Buckle size: 18mm
Buckle Include: Yes
Buckle type / Finish: Brushed Stainless Steel Pin Buckle
Overall Length: 90mm + 55mm
Thickness: Approx. 6.0mm - 3.7mm
Spring bar hole dia.: 2.5mm (included)
Design to fit : SEI Prospex Marinemaster 300m SBDX001 / SBDX003 / SBDX005 / SBDX017 replacement watch band
Material: NBR Rubber
Color / Finish: Black
Ref. Buckle:

Lookbook demo watches: SEI Prospex Marinemaster MM300 Diver Automatic SBDX017

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