Guaranteed comfort and convenience by MONSTRAPS.

Our new secure fit strap, molded in FKM rubber for superior durability. This is the same top grade rubber used in aerospace industry. As usual, our straps are resistant to UV rays, extreme temperatures, mechanical stresses, chemicals, and seawater. All our FKM tropic strap also comes with pre-installed quick release spring bars for easy strap change. 

The strap features a slide to lock mechanism on the floating keeper to ensure a secure fit for heavy duty users in the most testing environments. Strap features our standard quick release spring-bars (which will fit on Seiko dive watches) and 8 adjustment pinholes. 

Please note that this is a straight end strap and should fit universally on most watches with the correct lug width. 





All wrist sizes (8 pin holes spaced apart)


 Strap width


22 mm at lugs tapering down to 20 mm at buckle 

20 mm at lugs tapering down to 18mm at buckle 

Length of strap


125 mm / 75 mm (measure to end of strap without including buckle)


Strap material


FKM Rubber


Strap thickness


5.5mm at lug ends tapering to 3.0mm at strap end


Buckle material


316L Stainless Steel, brushed finish



Pin holes


8 tear resistant pin holes

Design to Fit

Universal fit for most watches with matching lug width (except watches with very short lugs / tight spacing between spring bar holes and watch head)

Quick release flangeless spring bars (our tropic straps can fit the Seiko dive watches without the need of the original fat Seiko bars)

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