Strap for Formula 1 Kith 35 PVD - Green / Black

The lug width is precisely 18 mm. This measurement represents the internal space between the two lugs where the strap passes. To verify this dimension accurately, use a digital calliper positioned perpendicularly to the case plane, measuring the interior distance from one lug to the other. Straps that are even slightly wider or narrower will create unwanted lateral play.

The choice depends on intended use. For formal occasions: vegetable-tanned alligator in tobacco brown with satin steel deployante. For timeless elegance: deep black calf with cream natural thread stitching. For daily sportiness: navy blue NATO with white stripe. For those desiring temporal patina: natural bordeaux shell cordovan. For climate resistance: grey FKM rubber with butterfly texture. We recommend consulting Casati Milano atelier to validate the choice based on your personal style.

This procedure requires specific tools: a spring bar tool (steel lever with calibrated tips) and small rubber pads to protect the case finish. Procedure: position the watch on a soft surface, insert the tool tip into the hole of the lug on one side, gently push towards the case centre to release the bar, remove the old strap, insert the bar onto the new strap, push until the closing click. Repeat on the other side. If uncertain, Casati Milano atelier performs the strap change service with fit geometry verification.

No. Although the lug width is 18 mm, generic straps do not guarantee the construction tolerances required: the internal width of the lug keeper, leather thickness, and structural rigidity all influence the final fit. A correct aftermarket strap must be specifically constructed for 18 mm with physical verification on the case. Milanostraps.it offers pre-verified and customisable straps; Casati Milano atelier creates bespoke pieces with precise measurement and subsequent adjustments.

Durability depends on tanning method, frequency of use, and climatic conditions. A high-quality vegetable-tanned alligator or calf strap lasts 3-5 years of intensive daily use before requiring replacement, but continues developing patina until structural failure. Shell cordovan resists 4-7 years, becoming softer over time. Rubber or NATO straps have a lifespan of 2-4 years. The warranty provided by Casati Milano is 18 months against manufacturing defects; natural wear depends on care and direct sunlight exposure.