The Perforated Calfskin

What it is and what it is made of

The Perforated Calfskin is a leather watch band with a line of holes punched down the middle. The perforations let air move under the strap, so it stays comfortable on warm days and during light activity. The strap is cut from genuine calfskin leather, with a leather lining on the underside that sits smooth against your wrist. A steel pin buckle closes it. The strap is 0.12 in (3 mm) thick, so it has some body without feeling bulky on the wrist.

This is a strap for everyday wear. It suits dive watches, field watches, and simple dress watches alike, and it works on both men's and women's watches. If you want a leather band that breathes instead of trapping heat, the perforated pattern is the reason to pick this one.

Sizes

Pick the lug width that matches your watch case. Measure the distance between the lugs, in millimeters, before you order. The strap fits wrists from 6.3 to 8.3 in (160 to 210 mm).

A strap that is too wide will not sit between the lugs. A strap that is too narrow will slide and leave a gap. When in doubt, measure twice.

Colors

Six colors are available:

• Black: clean and formal, pairs with steel or black cases.
• Khaki: a muted green tone for field watches.
• Brown: a warm mid brown that suits most dials.
• Beige: light and casual, good for summer wear.
• Red brown: a deeper tone with a hint of red.
• Dark brown: close to black in low light, classic with gold or steel.

All six colors share the same leather, lining, and buckle.

How to fit and use it

Fitting the strap takes a few minutes and a spring bar tool. Remove the old band, then slide the spring bars into the new strap and seat them between the lugs. Check that both ends click into place before you wear the watch. The pin buckle works like any standard buckle: thread the strap, set the hole that fits, and close the pin.

The perforations are decorative and functional. They add ventilation, and they give the strap a sporty look that pairs well with a dive or field watch. The strap works on traditional watches with standard spring bars. It is not a quick-release strap, so keep a spring bar tool on hand for changes.

Care

Wipe the strap clean with a soft, dry cloth. Keep it away from water. Leather takes on moisture, and repeated exposure can stiffen the strap or cause the color to shift. Take the watch off before you swim, shower, or wash dishes. If the strap gets damp, let it dry away from direct heat. With basic care, the leather softens and darkens slightly over time, which is normal for calfskin.