Glashütte Original · Seventies

Strap for Seventies Chronograph Panorama Date Turquoise / Bracelet

Takes 26 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width26 mm
Case diameter40 mm
Reference1-37-02-15-02-70
FamilySeventies
MovementGlashütte Original caliber 37-02 hours, minutes, small seconds | big date | Chronograph, column wheel, Flyback | power reserve indicator
Year2023
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Seventies 1-37-02-15-02-70, seen from the bench

The Glashütte Original Seventies 1-37-02-15-02-70 is a 40mm stainless steel chronograph representing contemporary German watchmaking tradition. The timepiece features the in-house caliber 37-02 movement with column wheel, flyback mechanism, and power reserve indicator, beating at 28,800 vph. The 26mm lug width accommodates a specific bracelet selection, reflecting precise proportional design characteristic of Saxon construction philosophy.

Frequently asked questions

What is the lug width of the Glashütte Original Seventies 1-37-02-15-02-70?

The lug width is 26mm. This dimension is specific to this model and requires deliberate selection of compatible straps or bracelets. To verify the measurement, insert a tape measure between the internal lugs of the case: you must obtain exactly 26 millimetres.

Which strap is most suitable for the Glashütte Original Seventies 1-37-02-15-02-70?

The ideal strap depends on intended use and personal preference. For sartorial elegance: grey alligator or shell cordovan with vegetable tanning in dark brown. For sportive versatility: NATO in heavy canvas (olive, graphite grey) or FKM rubber black/brown. For formal daily wear: fine-grained black calf with deployante. The strap texture must visually dialogue with the white chronograph counters.

How do I change the strap on a watch with 26mm lugs?

Position the watch with lugs facing you. Use a spring bar tool (flat, thin implement) or the edge of a Swiss Army knife to gently lift the small springs that hold the strap inside the lugs. Push from one side to slide the pin free: the strap will detach. Repeat on the other side. Insert the new 26mm strap into the upper lug, then through the lower pins, ensuring the small spring returns to position. If uncertain, entrust the task to a watchmaker to avoid micro-scratching the case.

Are aftermarket 26mm straps available that are compatible with the 1-37-02-15-02-70?

Yes, quality aftermarket straps exist specifically sized for 26mm lugs. Milano Straps offers a dedicated collection in leather (alligator, shell cordovan, calf), NATO textiles and FKM rubber, all dimensioned for 26mm lugs. Straps are handcrafted and available with rapid delivery. We recommend vegetable-tanned materials for longevity and patina development over time.

What is the average lifespan of a natural leather strap on a chronograph like the Seventies?

A natural leather strap with vegetable tanning (alligator or shell cordovan) lasts on average 3-5 years with moderate daily use. Lifespan depends on mechanical wear, sun exposure, wrist perspiration and maintenance. Shell cordovan ages better than alligator, developing deep, stratified patina. FKM rubber straps have superior longevity (5-8 years) and withstand moisture and chemical agents more effectively. Periodic maintenance with protective vegetable waxes significantly extends the life of leather straps.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only