Strap for SeaQ Chronograph Stainless Steel / Blue / Rubber - Folding

The lug width of the Glashütte Original SeaQ 1-37-23-02-81-33 is 21.00 mm. This dimension represents the internal distance between the two spring bar attachment points. A strap with a lug width below or above 21 mm will not be compatible with this model. You can verify this measurement using a digital calliper or by positioning a ruler between the lugs. Atelier Casati Milano provides visual guidance to confirm compatibility before ordering.

Strap selection depends on intended use and personal style. For an elegant nautical context, we recommend vegetable-tanned leather in cognac brown or black, which accentuates the ceramic bezel. For frequent aquatic environments, a synthetic NATO or technical rubber strap offers practicality and moisture resistance. Alligator or crocodile leather is ideal if you seek premium texture. Black rubber is the instrumental choice for diving. All 21mm straps from milanostraps.it are compatible and customisable according to your colour and material preferences.

Changing the strap on the SeaQ is straightforward and requires no specialised tools. Locate the spring bar attachment points on the case sides (two per side). Using a spring bar tool (a small lever with two prongs), gently compress the spring bar toward the case centre, creating space to extract the worn strap. Position the new strap (21 mm lug width) above the compressed spring bar, then release pressure so the spring bar seats into the slots of the new strap. Repeat on the opposite side. If uncertain, Atelier Casati Milano offers strap-changing service by appointment (Milan).

Yes, you can use aftermarket straps compatible with 21 mm lug width. The artisanal straps from milanostraps.it are made from certified leather, NATO, technical rubber and meet quality standards comparable to genuine Glashütte straps. The critical requirement is rigorous verification of lug width (21.00 mm) before purchase. Brands such as milanostraps.it provide pre-order consultation and compatibility assurance. Using aftermarket straps does not void your Glashütte Original warranty, provided you do not damage the case or spring bars.

Leather strap longevity depends on use and maintenance. A quality vegetable-tanned strap (such as those from milanostraps.it) with moderate daily wear and regular maintenance (cleaning every 3–4 months with a damp cloth, annual conditioning) lasts 3–5 years before replacement. If exposed to constant moisture or aggressive environments, longevity decreases to 1–2 years. For predominantly nautical or diving use, we recommend technical rubber or NATO straps, which maintain structural integrity for 5–10 years without deterioration. Atelier Casati Milano can restore worn straps or create bespoke replacements when leather shows irreversible ageing.