Strap for SeaQ Chronograph Stainless Steel / Silver Screen / Rubber - Folding

The Glashütte Original SeaQ 1-37-23-03-80-33 features a lug width of 21 mm. This measurement represents the distance between the inner lugs of the case and must be measured precisely to select a compatible strap. The 21 mm dimension is a deliberate design choice to maintain correct optical proportions between the 43.20 mm case and the bracelet. A strap of different width would not seat correctly and would create aesthetic or functional defects.

For the SeaQ, several materials are recommended depending on use: alligator in fine grain (belly cut) for institutional elegance, vegetable-tanned calf for natural patina development, NATO in Cordura or pure silk for sporting versatility, and FKM (Viton) rubber for genuine diving and water functionality. Your choice depends on the context of use and personal finish preference. All these materials are available in the 21 mm format compatible with this model.

Strap replacement is accomplished by extracting the spring bars from the case lugs. Using a dedicated spring bar tool, gently press both terminals to release the old strap, then insert the new one, aligning it with the lug seats and allowing the spring bars to click into place. The operation requires care to avoid scratching the case: it is advisable to entrust this task to a professional, particularly for watches of SeaQ's value. Atelier Casati Milano provides this service by appointment.

Yes, provided the aftermarket strap is constructed from authentic materials (genuine alligator, calf, authentic NATO) and respects the 21 mm lug width. A high-quality artisanal strap does not diminish the value and aesthetic of a watch of this calibre. MilanoStraps offers exclusively verified Italian artisanal straps, crafted to the same quality standards demanded by a precision German chronograph.

A high-quality artisanal leather strap, if subjected to ordinary use and regular maintenance, has a lifespan of 3 to 7 years. Factors influencing this duration include: frequency of use, exposure to moisture and heat, and periodic care and cleaning. Vegetable-tanned leather tends to last longer than industrial tannages, developing authentic patina. FKM rubber, when used for diving, maintains functional integrity for 5–10 years, though it will gradually lose elasticity over time.