Strap for SeaQ Date Stainless Steel / Black / Rubber / Pin

The lug width of the Glashütte Original SeaQ 1-39-11-06-80-06 is precisely 20.00 mm. This measurement should be verified using a digital calliper applied to the internal surface of the lug, at the base where the material achieves maximum structural rigidity. A 20 mm strap will insert with optimal tolerance into the apertures of the stainless steel case.

For the SeaQ 1-39-11-06-80-06, straps in crocodile leather with vegetable tanning (for natural patina development), shell cordovan from horse belly (for density and salt-water resistance), or technical nylon NATO (for post-immersion practicality) are recommended. The choice depends on the desired balance between tactile luxury and operational functionality. Cognac crocodile or rose mogany shell cordovan produce ideal chromatic pairings with the steel case.

Changing the SeaQ strap requires a spring bar tool with dual ball-ended tips. Position the tip inside the lug hole to compress the internal spring, remove the pin, extract the old strap. Insert the new strap (20 mm) aligning the lateral holes with the spring bar ends, then ensure the pin clicks into position. Verify that the strap sits equidistant on both sides of the case.

Yes, any 20 mm strap (the standard lug width for the SeaQ 1-39-11-06-80-06) is technically compatible. Artisanal crocodile straps with slow vegetable tanning prove particularly congruent aesthetically: the natural patina development over time dialogues with the evolving finish of the Glashütte steel case. Ensure the strap features an internal spiral spring to guarantee firm seating in the lugs.

A quality leather strap (crocodile, shell cordovan, vegetable-tanned calf) subjected to frequent immersion has an average durability of 18-24 months before requiring replacement. Salt exposure accelerates fibre degradation. For intensive marine use, alternating leather straps with NATO or FKM rubber versions is advisable, allowing leather to dry completely between uses. Periodic maintenance with natural waxes extends useful life by 6-12 months.