Glashütte Original · SeaQ

Strap for SeaQ Panorama Date Stainless Steel / Blue / 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
Reference1-36-13-02-81-09
FamilySeaQ
MovementGlashütte Original caliber 36-13 hours, minutes, seconds | big 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 1-36-13-02-81-09

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The SeaQ 1-36-13-02-81-09, seen from the bench

The Glashütte Original SeaQ Panorama Date is a professional diving watch with a 43.20 mm stainless steel case and manual-wind caliber 36-13 movement. It features a large date window, sapphire crystal with anti-reflective coating, and water resistance to 300 meters. The 21 mm lug width is precisely proportioned to the case diameter for optimal strap integration. Reference 1-36-13-02-81-09 represents Glashütte's contemporary interpretation of Saxon watchmaking tradition applied to underwater instrumentation.

Frequently asked questions

What is the lug width of the Glashütte Original SeaQ 1-36-13-02-81-09?

The lug width is 21.00 mm. This measurement, taken perpendicular between the case lugs, is specific to the 43.20 mm SeaQ model and results from proportional calculations applied to the case. A compatible strap must develop a lug width between 20.8 and 21.2 mm to ensure harmonious fit without play.

Which strap is recommended for the SeaQ 1-36-13-02-81-09?

Choice depends on intended use: alligator in black with warm brown patina accentuates the case's Germanic severity; vegetable-tanned calf in cognac tonality develops elegant patina over time; shell cordovan in oxblood offers longevity beyond a decade; NATO in textured nylon or hybrid fabric provides daily practicality and minimal maintenance; FKM rubber ensures stable thermodynamic behaviour post-immersion.

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

Remove the deployante (if present) by opening the two lateral pushers. Use a dedicated tool to extract the spring bars from the lugs: insert the tip underneath and apply controlled vertical pressure. Do not hammer. Insert the new strap, align the holes, reinsert the spring bars from one side to the other, verify the strap sits symmetrically. If the model features a deployante, manually screw the lateral pushers without forcing.

Can I use aftermarket-compatible straps on the SeaQ 1-36-13-02-81-09?

Yes, provided the lug width is certified at 21 mm ± 0.2 mm. Artisanal straps crafted by Atelier Casati Milano are calibrated precisely to this width, guaranteeing perfect fit and absence of play. Always verify that the strap has no protruding elements that might scratch the brushed stainless steel case.

What is the expected lifespan of a leather strap on the SeaQ?

An alligator strap of artisanal quality maintains functionality between 3 and 5 years under moderate daily wear. Vegetable-tanned calf develops elegant patina, extending aesthetic life beyond 5 years. Shell cordovan, for its superior crystalline density, exceeds 10 years. Lifespan depends on relative humidity, immersion frequency (the SeaQ resists to 300 m), UV exposure. FKM rubber remains stable beyond 7 years if not exposed to excessive temperatures.

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.

Request an appointment →

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