Glashütte Original · SeaQ

Strap for SeaQ Panorama Date Stainless Steel / Red Gold / Grey / Synthetic - 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
Reference1-36-13-04-91-08
FamilySeaQ
MovementGlashütte Original caliber 36-13 hours, minutes, seconds | big date
Year2020
CaseRed Gold, Stainless 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 1-36-13-04-91-08

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The SeaQ 1-36-13-04-91-08, seen from the bench

The Glashütte Original SeaQ features the automatic caliber 36-13 with hour, minute, second and big date functions. The watch has 21mm lugs and a construction oriented for underwater use. The in-house movement integrates the brand's signature big date display.

Frequently asked questions

What is the lug width of the Glashütte Original SeaQ reference 1-36-13-04-91-08?

The lug width is 21 mm. This measurement is specific to the SeaQ and ensures a harmonious transition between the lugs and your wrist. The strap must sit perfectly flush against the lugs without play or excessive tension. MilanoStraps supplies 21 mm straps tested for compatibility with this reference.

Which strap is best suited for the Glashütte Original SeaQ with its two-tone red gold and steel case?

An alligator strap in dark brown or cognac is the finest choice to enhance the two-tone case. The subtle grain texture and patina that develops over time create an elegant dialogue with the red gold. For a more restrained aesthetic, vegetable-tanned calf in chestnut brown offers versatility without compromising refinement. Rubber straps are ideal if use is predominantly aquatic.

How do you change the strap on the Glashütte Original SeaQ 1-36-13-04-91-08?

The SeaQ has standard non-welded lugs. Use a spring bar tool to gently remove the spring that secures the old strap. Insert the two ends of the spring into the lug slots, then slide the pre-fitted strap onto the opposite spring. Avoid forcing: smooth movement indicates correct positioning.

Is an aftermarket strap compatible with the Glashütte Original SeaQ reference 1-36-13-04-91-08?

Yes, provided it is specifically calibrated for 21 mm lug width. MilanoStraps offers custom artisanal straps compatible with this reference, crafted from superior leather, NATO fabric and vulcanised rubber. Each strap is tested before dispatch to guarantee precise fit without tolerance deviation.

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

A high-quality alligator or vegetable-tanned calf strap lasts 5–8 years under normal wear conditions (daily non-submersed use). Durability depends on humidity, sun exposure and salt contact. With regular maintenance (hydration with natural creams) and rotation with other straps, the leather develops an elegant patina and extends its functional life. Rubber straps have superior durability (10+ years) but lose elasticity over time.

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