Strap for 188° Blue

The lug width is exactly 18mm. This dimension is standardised across all models in the 39mm Midsize family by Zeitwinkel and is calculated to maintain correct visual proportions between case and strap. To verify compatibility of an aftermarket strap, measure the distance between the two lateral lugs (the strap attachment points): it must be 18mm.

The best strap depends on usage and personal preference. For formal elegance, an alligator or vegetable-tanned calf leather in cognac, medium brown, or burgundy tones enhances the sophistication of the blue dial. For daily practicality, a nylon NATO in grey or black ensures durability and versatility. For sports or humid environments, structured FKM rubber is stain-resistant and chemically durable.

Changing a strap is a straightforward operation requiring no specialist tools. Position the watch on a soft cushion, locate the spring bar (the pin connecting the strap to the case), and using a thin tool (a strap removal tool or even a needle), push the bar laterally until it slides out. Repeat on the other side. The old strap then detaches. Insert the new 18mm strap and slide the bar from the opposite side until you feel it click into place.

Yes, any strap with an 18mm lug width is compatible. When selecting, verify that the strap thickness is proportionate: overly thick straps or with a massive buckle (such as a titanium deployante) could visually alter the balance of a 39mm case. Artisan-crafted leather straps, vegetable-tanned leather hand-dyed in the vat, and NATO nylon bands are the optimal choices.

A quality artisan leather strap (alligator, vegetable-tanned calf, shell cordovan) typically lasts 3–5 years with daily wear, especially if exposed to perspiration, humidity fluctuations, and accidental impacts. Longevity extends considerably (6–8 years) if the watch is worn in controlled environments or kept away from direct moisture and heat sources. Maintenance—gentle cleaning with a damp cloth, conditioning with specific creams every 6–12 months—significantly prolongs service life.