Glashütte Original
Senator 100-02-25-12-04— lug 20mm
Glashütte Original Senator 100-02-25-12-04: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Glashütte Original 100-02-25-12-04The essential strap measurement.
Browse 20mm straps →100-02-25-12-04
Glashütte Original caliber 100-02 Hours, Minutes, Seconds | Big Date, Day, Leap Year, Month | Moonphase | Alarm
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Selected for the 20mm lug width of the Senator
FAQ
What is the lug width of the Glashütte Original Senator 100-02-25-12-04?
The lug width of the Senator 100-02-25-12-04 is 20 millimetres. This dimension is proportional to the 42mm case and represents the official Glashütte specification. It is measured perpendicularly between the two spring bar pins, from the upper to the lower attachment point. Any aftermarket strap must respect this exact dimension to ensure correct positioning and mechanical stability.
Which type of strap is recommended for the Glashütte Original Senator 100-02-25-12-04?
For the Senator 100-02-25-12-04, an alligator strap of quality construction is recommended, preferably with vegetable tanning, to maintain aesthetic coherence with the watch's formal character. Alligator offers a regular texture, a patina that develops naturally and constructive elegance compatible with Saxonian movement finishing. Alternatively, vegetable-tanned calf leather or a technical rubber strap provide versatility whilst maintaining balanced visual proportions. NATO straps are technically compatible but tend to visually overweight the design.
How do you change the strap of the Glashütte Original Senator 100-02-25-12-04?
The strap is changed by removing the spring bar that connects the strap to the case. Use a dedicated spring bar removal tool to compress the pin and disengage the strap from the lugs. Position the tool parallel to the lug, apply controlled pressure and extract the strap. The reverse procedure applies the new strap: insert the pin into the upper seat, compress lightly with the removal tool and allow the pin to snap into the lower seat. This method preserves the integrity of the case and lugs.
Is the Glashütte Original Senator 100-02-25-12-04 compatible with aftermarket straps?
Yes, the Senator 100-02-25-12-04 is fully compatible with high-quality aftermarket straps, provided they strictly respect the 20-millimetre lug width. Straps in alligator, calf leather, shell cordovan, technical rubber or NATO of the correct width can be fitted without modification. It is essential to verify that the strap has regularly spaced passage holes and that the spring bar pins are stainless steel of quality to prevent corrosion. Milano Straps offers a complete selection of tested and compatible 20mm straps.
What is the average lifespan of a leather strap on the Glashütte Original Senator 100-02-25-12-04?
A high-quality leather strap—alligator, calf, shell cordovan—fitted to the Senator 100-02-25-12-04 maintains optimal performance for 3-5 years of daily use, provided it receives appropriate maintenance. Longevity depends on environmental factors: sun exposure, humidity, usage frequency and perspiration accelerate ageing. Vegetable tanning develops a desirable patina within the first 6-12 months, whilst synthetic resin straps have more predictable degradation timelines. A technical rubber strap offers superior durability (7-10 years) with less aesthetic complexity. Periodic replacement is part of standard aftermarket strap management.