Glashütte Original · SeaQ

Strap for SeaQ 1969 Date Stainless Steel / Black / Rubber / Folding

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference1-39-11-01-80-33
FamilySeaQ
MovementGlashütte Original caliber 39-11 hours, minutes, seconds | date
Year2019
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the SeaQ 1-39-11-01-80-33

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The SeaQ 1-39-11-01-80-33, seen from the bench

The SeaQ represents Glashütte Original's contemporary interpretation of the diving watch. It is equipped with the automatic caliber 39-11 with indication of hours, minutes, seconds and date. The reference 1-39-11-01-80-33 maintains the typical technical characteristics of the brand's diving watches.

Frequently asked questions

What is the lug width of the Glashütte Original SeaQ 1-39-11-01-80-33?

The lug width of the Glashütte Original SeaQ 1-39-11-01-80-33 is 20 millimetres. This dimension is measured as the physical distance between the two fixed lugs of the case and represents the critical parameter for strap compatibility. An incorrect measurement results in mechanical incompatibility and potential compromise of water-tightness.

Which type of strap is most suitable for the Glashütte Original SeaQ?

The SeaQ 1-39-11-01-80-33 accommodates multiple material solutions. For those seeking elegance, alligator in dark tones (black, deep blue) or calf leather in vegetable tanning represent the most refined choices. For sportiness and versatility, NATO straps in grey or navy blue are ideal. FKM rubber is the maximalist solution for intensive aquatic use. No single solution is superior: selection depends on personal usage ecosystem.

How do I change the strap on a Glashütte Original SeaQ?

The strap is changed by removing the spring bars that secure it to the case lugs. Using a dedicated spring bar tool or small screwdriver, push the bar laterally until it emerges from the lug. Once the bars are removed, the old strap disengages easily. Installation of the new strap requires reinsertion of the bars into the lugs until they click into position, ensuring the strap is centred with no lateral play.

Can I use a quality aftermarket strap on a Glashütte Original SeaQ?

Yes, absolutely. Quality aftermarket straps are compatible with the SeaQ 1-39-11-01-80-33 provided they respect the 20 millimetre lug width. Aftermarket straps allow personalisation of the watch according to specific aesthetic and functional preferences without compromising the original structure. We recommend selecting specialised suppliers who guarantee precise finishing and certified materials.

How long does a leather strap last on a Glashütte Original SeaQ?

The longevity of a leather strap depends on usage intensity, climatic conditions, and construction quality of the material. On average, a quality calf leather strap resists 3-5 years of daily wear under normal conditions, developing natural patina that increases character. Prolonged exposure to fresh or salt water accelerates ageing. Vegetable-tanned leather straps age visibly but maintain structural integrity longer. Regular maintenance (cleaning, drying, conditioning treatments) significantly extends longevity.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only