Glashütte Original · SeaQ

Strap for SeaQ Panorama Date Stainless Steel / Blue / Rubber - Pin

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter43 mm
Reference1-36-13-02-81-06
FamilySeaQ
MovementGlashütte Original caliber 36-13 Hours, Minutes, Seconds | Big Date
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 1-36-13-02-81-06

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The SeaQ 1-36-13-02-81-06, seen from the bench

The Glashütte Original SeaQ Panorama Date (Ref. 1-36-13-02-81-06) is a contemporary sports dive watch inspired by the legendary 1960s Copacabana chronometer. It features a tonneau stainless steel case measuring 43.20 mm in diameter with a screw-down crown, powered by the caliber 36-13 chronometer-certified movement with three-quarter Glashütte balance. The silvered dial displays hours, minutes, seconds, and a large date window positioned symmetrically. Water resistance reaches 300 metres for recreational diving. The 21 mm lug width is essential to the case's proportional architecture.

Frequently asked questions

What is the lug width of the Glashütte Original SeaQ 1-36-13-02-81-06?

The lug width is 21 millimetres. This dimension is specific to the SeaQ's tonneau case and is essential for ensuring correct aesthetic fit of a replacement strap. You can verify the measurement by placing a ruler across the lug attachment points on the case.

Which strap is recommended for the Glashütte Original SeaQ?

Three principal options are recommended: alligator leather for maximum sophistication and discretion, vegetable-tanned calf for tactile character and naturally developing patina over time, or NATO and rubber options for sport-oriented and practical daily use. Choice depends upon intended use and personal aesthetic preference.

How do you change a strap on a watch with 21mm lugs?

The procedure is straightforward: remove the watch from your wrist, position the case face-up, then use a spring bar tool to gently compress the internal spring of the lug and extract it from its seat. Once removed, insert the new strap by repeating the operation. Casati Milano offers professional replacement service by appointment.

What is the difference between an aftermarket and original strap?

An artisanal aftermarket strap—such as alligator or vegetable-tanned calf—typically offers superior construction quality, rigorous material selection, and personalisation possibilities. Original Glashütte straps are functionally correct but often lack character. Aftermarket options allow complete aesthetic reinterpretation of the watch's personality.

How long does a natural leather strap last?

Longevity depends upon usage intensity and tannery quality. High-grade vegetable-tanned calf typically lasts 3–5 years with daily wear, developing character aesthetically. Alligator, more robust, can exceed 5–7 years. Leather ages naturally—creasing and patina are not faults but markers of authenticity. Selecting straps from reputable tanneries guarantees longevity and beautiful patination.

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