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Nomos Glashütte · Tangente

Strap for Nomos Glashütte Tangente 139.TS

The Tangente Taiwan Sky takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll Nomos Glashütte
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Lug width18 mm
Case diameter35 mm
Reference139.TS
FamilyTangente
MovementNomos Glashütte caliber Alpha Hours, Minutes, Small seconds
Year2007
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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What I'm asked about the Nomos Glashütte Tangente 139.TS

What strap size does the Nomos Glashütte Tangente 139.TS take?

The Nomos Glashütte Tangente 139.TS needs 18 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Nomos Glashütte Tangente 139.TS be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Nomos Glashütte Tangente 139.TS?

Yes, in 18 mm leather. On a 35 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Nomos Glashütte Tangente 139.TS?

A 18 mm calf strap, for every day. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

Straps for the Tangente 139.TS

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Tangente 139.TS, seen from the bench

The Nomos Glashütte Tangente 139.TS is a 35mm stainless steel watch embodying Bauhaus design principles. It features the Alpha calibre manual movement with 209 components entirely made in Glashütte, oscillating at 21,600 beats per hour. The model has a cathedral-hands style and milk-white dial. The 18mm lug width is specifically proportioned to the case harmony and requires compatible straps for proper wear.

Frequently asked questions

What is the best strap for the Nomos Glashütte Tangente 139.TS?

The ideal strap depends on use: for classical elegance choose vegetable-tanned alligator in black or brown, for daily versatility a vintage English calf, for practicality a NATO in grey or navy blue, for sports functionality a structured FKM rubber. Each material enhances the Bauhaus rigour of the Tangente.

Which aftermarket straps are compatible with the Nomos Tangente 139.TS?

All straps with an 18mm lug width are compatible with the Tangente 139.TS. At milanostraps.it the collection includes full-grain leather, alligator, English calf, ballistic NATO, and FKM rubber, all verified for this specific dimension and the minimalist Nomos aesthetic.

How long does a leather strap last on a Nomos Tangente 139.TS?

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3–5 years with regular use, developing a natural patina that enhances aesthetic value. Longevity depends on ambient humidity, sun exposure, and frequency of wear. A ballistic NATO strap resists 5–7 years. FKM rubber maintains elasticity for 4–6 years.

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

The atelier's website: casatimilano.com