Strap for SeaQ Date Stainless Steel / Green / Rubber - Folding

The lug width of the Glashütte Original SeaQ 1-39-11-13-63-33 is 20 mm. This measurement has been calculated to maintain harmonious proportions on the 39.50 mm case, allowing standard leather straps (1.4–1.6 mm thickness) to pass through the lugs without requiring additional modifications. To verify exact compatibility, measure the lugs with a digital calliper near the case, as minor tolerance variations (± 0.2 mm) may affect mounting ease.

For the SeaQ 1-39-11-13-63-33, straps that respect the model's minimalist identity are recommended: alligator leather with vegetable tanning and fine grain texture, natural calf with natural patina development, or NATO webbing in Cordura canvas. In marine environments, FKM rubber (neoprene) ensures salt-water resistance and rapid drying. A leather strap, preferably with a stainless steel deployante clasp, creates the finest aesthetic balance with the brushed case and stainless steel.

To change the strap on the SeaQ, use a dedicated spring bar removal tool positioned under the connecting pins at the lug ends. Apply gentle pressure to compress the internal spring and slide the strap outward. Repeat on the opposite side. Install the new strap by aligning it with the pin seats, then reinsert the pins and verify that the strap is securely fastened. Never force: the pins enter by gravity when correctly aligned.

Yes, the Glashütte Original SeaQ 1-39-11-13-63-33 is fully compatible with aftermarket 20 mm lug width straps. Ensure that the strap thickness is between 1.4 and 1.6 mm to guarantee smooth passage through the lugs without excessive play. Alligator leather, vegetable-tanned calf, NATO, and rubber straps are all compatible. Atelier Casati Milano provides personalised consultation for selecting the most harmonious material and finish.

A quality leather strap, crafted from alligator or vegetable-tanned calf, typically lasts 3–5 years under daily use and normal wear. Lifespan depends on intensity of use, moisture exposure, and tanning quality. A vegetable-tanned strap naturally develops patina and may remain in service longer. FKM rubber resists degradation for 4–7 years under normal conditions. Regular maintenance—cleaning, drying, avoiding direct heat sources—significantly extends strap longevity.