Strap for Seastar 1000 Chronograph Quartz 45.5 Stainless Steel / Gradient Blue / Bracelet

The lug width is 22mm. This measurement is specific to the model and ensures proper proportional balance between the 45.5mm case and the wrist. Verify by measuring the distance between the two metal pins that secure the strap to the case lugs using a digital calliper.

Three options are advised for this sporting instrument: genuine alligator (Mississippi belly leather) for natural patina development and marine moisture absorption; shell cordovan for exceptional resistance to saltwater and chlorine; Mil-Spec nylon NATO or FKM rubber for pure aquatic sports without post-immersion maintenance requirements.

Insert a spring bar tool beneath the lug pin and press gently upward until the internal spring retracts and releases the pin. Align the two lugs of the new strap with the case lugs and press firmly until you hear a click confirming secure engagement. Verify proper seating on both sides before fastening.

Yes, provided it has been designed or verified for 22mm lug width. Quality Italian artisan straps crafted from vegetable tanning or shell cordovan adapt perfectly. Always ensure the passant width is proportionate to the 45.5mm case diameter to avoid aesthetic discord.

A Tuscan vegetable-tanned leather strap typically lasts 3–5 years with regular use and maintenance (periodic cleaning, post-immersion drying, semi-annual conditioning). Shell cordovan, thanks to superior fibre density, can extend longevity to 7–10 years. NATO and FKM rubber last indefinitely due to resistance to chemical and biological oxidation.