Strap for Orion 35 Gold

The lug width of the Nomos Glashütte Orion 313 is 18 millimetres. This standard measurement for classic watches of 35 millimetres diameter ensures visual proportionality between case and strap. It is essential to measure the lug width correctly by placing a ruler from inner edge to inner edge between the two spring bar pins, excluding the thickness of the bars themselves.

For the Orion 313 in yellow gold, an alligator or vegetable-tanned leather strap represents the ideal choice. Alligator with uniform grain naturally complements yellow gold, developing a patina that improves over time. For daily versatility, a NATO strap in neutral tones offers functionality whilst maintaining elegance. Avoid synthetic straps, as they do not age harmoniously with the noble metal of the case.

To change the strap, you require a spring bar removal tool. Position the watch face-down, locate the small opening of the spring bar pin on the lug, insert the tool to compress the internal pin, then extract the strap. Proceed with caution to avoid scratches on the case. The operation requires only a few minutes and is easily performed independently.

Yes, any 18-millimetre strap is fully compatible with the Orion 313. The standardisation of lug width allows the use of straps from any manufacturer, provided they are watchmaking quality. Verify that the strap features standard spring bar pins (1.8 millimetres diameter), and that the length of the straight sections has been adjusted according to the specific geometry of the case.

A vegetable-tanned leather strap, subjected to daily use, maintains structural integrity for 4-6 years. Durability depends on intensity of wear, climatic conditions, and tanning quality. Formal watches, worn occasionally, see straps lasting 8-10 years. Vegetable-tanned leather distinguishes itself through its ability to develop a natural patina that improves over time: a micro-fracture or wear does not represent degradation, but rather acquired character.