Strap for Purist Typ 1 Datum Stainless Steel / Blue

The lug width of the Deutsche Uhrenmanufaktur Glashütte Purist Typ 1 P1DB-LB is 20mm. This dimension is specific to the 40mm case proportion and should be measured internally between the metal lugs of the strap attachment using a digital calliper.

The most coherent choice is an alligator strap with vegetable tanning in medium brown or tobacco tone, as the natural texture of the grain reflects the constructive linearity of the dial. Alternatively, vegetable-tanned calf leather or NATO strap in grey or black cordura for sporty wear.

To change the strap, use a spring bar tool to remove the bayonet-style spring bars. Position the thin end of the tool in the small slot on the spring, apply gentle inward pressure to release tension, then remove the bar. Repeat on the other side. Insert the new spring bars into the new strap and reposition in the case lugs.

Yes, the P1DB-LB is compatible with any quality aftermarket strap featuring a 20mm lug width. It is essential to verify that the lug width is precisely 20mm, as universal straps may present incorrect manufacturing tolerances. Always verify compatibility before purchase.

A vegetable-tanned leather strap has an average lifespan of 18-24 months with daily wear, varying according to sun exposure, humidity and frequency of use. Vegetable tanning ages naturally, developing patina, which is a desired characteristic. FKM rubber lasts 3-4 years, while NATO cordura can last 4-5 years. Regular maintenance extends strap life.