Dan Henry · 1970

Strap for Dan Henry 1970 Automatic Diver 40 Black-Grey / Stainless Steel

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter40 mm
Reference1970-40-Grey
Family1970
MovementTime Module caliber NH35A Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the 1970 1970-40-Grey

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The 1970 1970-40-Grey, seen from the bench

The Dan Henry 1970 mounts the automatic NH35A caliber with hour, minute, second and date functions. The model features a case with 22mm lugs. The 1970-40-Grey reference is part of the brand's collection inspired by the 1970s.

Frequently asked questions

What is the lug width of the Dan Henry 1970-40-Grey?

The Dan Henry 1970-40-Grey features a 22mm lug width. This is the internal distance between the two lugs of the case where the strap is inserted. You can verify it by measuring the net distance between the lugs with a ruler, or by consulting the watch manual or manufacturer's website.

What is the best strap for the Dan Henry 1970-40-Grey?

The choice depends on usage and season. For an authentic racing sportive look, we recommend a perforated calf leather strap (such as the Rally from Milano Straps) in Black or Tobacco Brown. For formal elegance, alligator or shell cordovan. For tactical versatility, a nylon NATO or FKM rubber strap. All are compatible with the 22mm lug width.

How do I change the strap on my Dan Henry 1970-40-Grey?

First, remove the old strap using a spring bar tool (a thin forked instrument) to compress the elastic pins that hold the strap in the lugs. Once released, the strap detaches easily. Repeat the procedure with the new strap, inserting the pins into the lugs until you hear a click. Do not apply excessive force to avoid damaging the case or pins.

Is a quality aftermarket strap compatible with the Dan Henry 1970-40-Grey?

Yes, absolutely. Any strap with a 22mm lug width is mechanically compatible. Milano Straps offers a complete collection of 22mm leather, NATO and rubber straps with verified artisanal quality. Always verify that the strap is designed for 22mm lugs before purchasing.

How long does a leather strap last on the Dan Henry 1970-40-Grey?

Durability depends on tanning quality, usage and maintenance. An alligator or calf strap from an artisanal laboratory (vegetable tanning) typically lasts 3-5 years with moderate daily use, increasing with regular care (dry cloth cleaning, annual conditioning with specific creams). Rubber straps last 5-7 years before losing elasticity. Nylon NATO straps easily exceed 10 years if stored properly.

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